CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Given height of cone = h = 10 cm
Radius of base r = 7 cm
Volume of cone V1 = 1/3 π r² h
                              = 1/3 π x 49 x 10
                             = 490 π / 3
Volume of hemisphere V2 = 2/3 π r³
                                          = 2/3 π x 7 x 7 x 7
                                          = 686 π / 3
So V₁ + V₂ = 490 π / 3 + 686 π / 3
                   = 1176 π / 3
                  = 1232 cm³
We know that curved surface area of cone = π r l
                                        {tex}= 22/7 x 7 x 12.2 (l = √r^2 + h^2 = √7^2 + 10^2 = √149){/tex}
                                                          = 268.4
Curved surface area of hemisphere = 2 π r²
                                                        = 2 x 22/7 x 7 x 7
                                                       = 44 x 7
                                                      = 308
So total area to cover the sheet will be 268.4 + 308 = 576.4 cm²

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The pair of linear equation y is equal to zero and y=0 and y=-6 has (1) a unique solution (2) no solution (3) infinitely many solution (4) only solution (0,0)

Posted by Prabhakar Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Aseem Mahajan 5 years, 8 months ago

b₁/b₂ ≠ c₁/c₂

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Lucifer??Morningstar?? . 5 years, 8 months ago

How ? Pls explain

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Aseem Mahajan 5 years, 8 months ago

(2)No solution

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The p

Posted by Prabhakar Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

8 answers

Aseem Mahajan 5 years, 8 months ago

Acchaaaa ok

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? Royal Thakur ? 5 years, 8 months ago

Maine bhi consumption ka he likha tha...kyuki jb production low hoga tb consumption kha se jyada hoga...

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Aseem Mahajan 5 years, 8 months ago

Itna niche ni ja skta error ho jata hai

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Aseem Mahajan 5 years, 8 months ago

Kyuki maths ka ques hai isliye

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? Royal Thakur ? 5 years, 8 months ago

Per capita consumption wale q me jao....

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? Royal Thakur ? 5 years, 8 months ago

Aapko kaise pta ke vo product likhane wala tha..

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Product* write full

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Matlab

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a bag contains 3 red 5 black and 7 white balls a ball is drawn from the bag at random the probability that the ball drawn is not black is

Posted by Prabhakar Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Sowndaryaa Lakshmi V 5 years, 8 months ago

10/15=2/3

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Mahi Rajput 5 years, 8 months ago

10/15

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Anushka ?? 5 years, 8 months ago

10/15 i.e 2/3

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Aseem Mahajan 5 years, 8 months ago

2/3

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Sowndaryaa Lakshmi V 5 years, 8 months ago

10/15

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The mean and median of a distribution are 14 and 15 respectively the value of mode is

Posted by Prabhakar Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Aseem Mahajan 5 years, 8 months ago

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Mahi Rajput 5 years, 8 months ago

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The mean And median of a distribution are 14 and 15 respectively

Posted by Prabhakar Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Prabhakar Kumar 5 years, 8 months ago

Eska mode nikaliye

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Mahi Rajput 5 years, 8 months ago

Q incomplete hai

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Shreya S❤ 5 years, 8 months ago

So what??

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What is a nation state

Posted by Sm .. 5 years, 8 months ago

CBSE > Class 10 > Mathematics

12 answers

Mahi Rajput 5 years, 8 months ago

Problem kya hai ye btao

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Mahi Rajput 5 years, 8 months ago

Smarkee kya ho gya ese kyu bol rhe ho

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Sweety Angel 5 years, 8 months ago

A state in which there is common identy and shared histort

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Jhar lo ge to muza v da dana

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Jhar mt lo corrona vireus ho jaya ga sm

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Kya huaa smarkee kha gaye tm

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Girt to muza v pta ha bt tm ya bato ki ya thumar last birthday kyou ha

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Smarkee ya kya bol rhi ho tm last birthday

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Anshika ? 5 years, 8 months ago

Why is it gonna be ur last bday btw

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Sowndaryaa Lakshmi V 5 years, 8 months ago

Kya gift diya usne

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? Royal Thakur ? 5 years, 8 months ago

a group of people with the same culture, language, history, etc. who have formed an independent country

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Mee

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E.x-1.1

Posted by Kajal Verma 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Kumkum Sarswat 5 years, 8 months ago

Maths ka exam to ho gya then why???????

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Anushka ?? 5 years, 8 months ago

Kon sa q

2Thank You

ANSWER

Will there be any problem if i make a mistake in bubbling my name in omr sheet ?

Posted by Puspak Kumar Laha 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Puspak Kumar Laha 5 years, 8 months ago

Sure na ?

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

1Thank You

Anushka ?? 5 years, 8 months ago

No roll no. Is correct na

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9000 were divided equally among a certain no Of people.had there been 20 people more ,ech would have got 160 less. Find the original no of people

Posted by Anoop Sharma 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Pk . 5 years, 8 months ago

Set 3 ?

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Pk . 5 years, 8 months ago

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if the centre of a circle is 3, 5 and the point of a diameter 8 4, 7 and 2 y then the find the value of y

Posted by Shalini Bisht 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankitsingh ???? 5 years, 8 months ago

Hi Anushka

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Apoorva Negi 5 years, 8 months ago

Ab toh sst ka paper h

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If the centre of a circle is ( 3,5) and end point of a diameter are (4,7)and (2'y)than the value of y is:

Posted by Shalini Bisht 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Pk . 5 years, 8 months ago

Y=3

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Ankitsingh ???? 5 years, 8 months ago

X=x2+x1 2

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Ankitsingh ???? 5 years, 8 months ago

Use mid point formula

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(52)^3*5^4/5^7

Posted by Jyoti Sharma 5 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Maths ka paper kaisa gaya

Posted by Lavish Kumar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

???Akhil Singh Sengar ??? 5 years, 8 months ago

Mst

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Jatin Shakya 5 years, 8 months ago

Bahut bahut acha

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Sumit Kumar Rohan 5 years, 8 months ago

Lajawab

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Nishant Verma 5 years, 8 months ago

Acha tha

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ANSWER

Find the hcf of 180, 252 and 324 by using euclids fivision lemma.

Posted by Ammu Deol 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 8 months ago

324 = 252 x 1 + 72 252 = 72 x 3+ 36 72 = 36 x 2 + 0 HCF(324, 25) = 36 180 = 36 x 5 + 0 HCF (36, 180) = 36 :. HCF of 180, 252 and 324 is 36.Read more on Sarthaks.com - https://www.sarthaks.com/174631/find-the-hcf-of-180-252-and-324-by-euclids-division-algorithm

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The volume of sphere is 12πcm . Find its radius.

Posted by Krishna Jaiswal 5 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

☮?Amiable Buddy?☮ 5 years, 8 months ago

This is correct for sure

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☮?Amiable Buddy?☮ 5 years, 8 months ago

3^⅔

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Anushka ?? 5 years, 8 months ago

Google se pucho

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Anushka ?? 5 years, 8 months ago

√63/22 galat lag raha h

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Two tan

Posted by Paras Maheshwari 5 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Anushka ?? 5 years, 8 months ago

Hi aseem

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☮?Amiable Buddy?☮ 5 years, 8 months ago

2tan is the answer

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??? ??? 5 years, 8 months ago

Yee kyaa h ???? Pura ques to likhooo???

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Anushka ?? 5 years, 8 months ago

2tan

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Shreya S❤ 5 years, 8 months ago

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For those who want social media in the name of study.. brainly ki ek jhalak... screenshots of brainly app in my phone...

See the efficient chatting platform

Posted by ☮?Amiable Buddy?☮ 5 years, 7 months ago

CBSE > Class 10 > Mathematics

49 answers

? Royal Thakur ? 5 years, 8 months ago

Accha...

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☮?Amiable Buddy?☮ 5 years, 8 months ago

But ab strictness bd gyi hai ab ni hota aesa

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Hn kuch log the pehle aese

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Anushka ?? 5 years, 8 months ago

Maine pucha kaisa app h toh bole *** chat app isliye uninstall kiya

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? Royal Thakur ? 5 years, 8 months ago

Mere id yha pe bs royal thakur hai hmesha se thakur singh kabhi nhi thi...

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? Royal Thakur ? 5 years, 8 months ago

Phir gayab....kha gye......

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? Royal Thakur ? 5 years, 8 months ago

......

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? Royal Thakur ? 5 years, 8 months ago

Aur id kya thi

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? Royal Thakur ? 5 years, 8 months ago

Kya bola tha maine

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Kya answer chahiye royal?

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? Royal Thakur ? 5 years, 8 months ago

.........

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Sowndaryaa Lakshmi V 5 years, 8 months ago

Aree muje brainly mai karna kya nahi karna kuch samaj mai nhi aarha haii...isliye maine uninstall kar diya buddy

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Sahi boli chalo sab social mein

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? Royal Thakur ? 5 years, 8 months ago

????

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Mere id ha iss app pr

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Shi kha anu

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? Royal Thakur ? 5 years, 8 months ago

Amiable please answer....

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Anushka ?? 5 years, 8 months ago

Mai ise download kar chuki hu bekar app h

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꧁༺★King K. Tyagi Ji}★༺꧂ ??? 5 years, 8 months ago

Muza ya app bilkul smz nee aiya ha or na he iss app ya friends mila ga

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Tujhe cbse ne theka diya h sabko report krne ke liya

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Agar ab kisi ko report kiya to????

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Tu kitna sach bolta h pata h sabko ???????

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Dusro ko prblm h to unhe report krne de tu sabka yah fikra krne wala hua h

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? Royal Thakur ? 5 years, 8 months ago

Maine kabhi iss app pe kisi ko kuch bura nhi bola.....bs chat krne ko mna krta tha.....agar usne kuch bura bola tha to vo mai nhi ho skta....

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Bahut dusro ki phikra h tujhe pahela tu apni fikra kr

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Bada dusre ka khyal rakh rah h pahela apna dekh dusro main tang na adaya kr samjha

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? Royal Thakur ? 5 years, 8 months ago

Kya bola tha maine....asj tk maine kabhi iss app pe kisi ko kuch kharab nhi bola...

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Kisi aur ko nhi tumhi logo ko jada problem lagata h

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Mai to nhi bana raha hu

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? Royal Thakur ? 5 years, 8 months ago

Kya kha tha maine??

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??(｡☬Ashu☬｡)?? Bhardwaj 5 years, 8 months ago

Q tum log report kr rhe ho issi liya maine q banana chod diya

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? Royal Thakur ? 5 years, 8 months ago

Royal thakur 6 thi??

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? Royal Thakur ? 5 years, 8 months ago

Id kya thi???

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Mujhe hi nhi sbko kaha tha

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Aapko yaad ni aapne mujhe kya kuch kaha tha?

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Royal to aap wahi ho

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? Royal Thakur ? 5 years, 8 months ago

Buddy aapne bhi report kiya upar wale q ko....??

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? Royal Thakur ? 5 years, 8 months ago

Actually ye app bhut slow h...isiliye reply me thoda tym lg jata h....

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? Royal Thakur ? 5 years, 8 months ago

Mere id royal thakur se h thakur singh nhi.......agar vo thakur singh tha to koi aur hoga...agar royal thakur 6 hoga tb mai he honga.....

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☮?Amiable Buddy?☮ 5 years, 8 months ago

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Vese aap wo thakur singh jo ek din raat ko yha aay the aur hume chatting na krne ka suggestion dere the?

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? Royal Thakur ? 5 years, 8 months ago

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Haan...

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☮?Amiable Buddy?☮ 5 years, 8 months ago

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? Royal Thakur ? 5 years, 8 months ago

Hmm vo to h...lekin inko kon smjhaye..?????

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Study app hai aur dekho isme chatting aur zada acchi hoti hai yaha se

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Itna sb dikha diya fir bhi na jay to kya kr skte hai

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? Royal Thakur ? 5 years, 8 months ago

Ye sb nhi jayenge bhai ......

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☮?Amiable Buddy?☮ 5 years, 8 months ago

Thats why kehra tha brainly pe jao

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ANSWER

Prove root 5 is rational number

Posted by Md Arman 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

? Royal Thakur ? 5 years, 8 months ago

To prove that √5 is irrational number Let us assume that √5 is rational Then √5 = (a and b are co primes, with only 1 common factor and b≠0) ⇒ √5 = (cross multiply) ⇒ a = √5b ⇒ a² = 5b² -------> α ⇒ 5/a² (by theorem if p divides q then p can also divide q²) ⇒ 5/a ----> 1 ⇒ a = 5c (squaring on both sides) ⇒ a² = 25c² ----> β From equations α and β ⇒ 5b² = 25c² ⇒ b² = 5c² ⇒ 5/b² (again by theorem) ⇒ 5/b-------> 2 we know that a and b are co-primes having only 1 common factor but from 1 and 2 we can that it is wrong. This contradiction arises because we assumed that √5 is a rational number ∴ our assumption is wrong ∴ √5 is irrational number

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A wall of A Room is of dimesion 5m x4m iT has a Windo w of dimension 1.5mx1m And A door of dimension 2.25mx 1m .Find the area of The wall is to be painted

Posted by Tanmay Vora 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Chetna ??? 5 years, 8 months ago

16.25 metre square

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Anushka ?? 5 years, 8 months ago

Aapko ans pata h kya

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Tanmay Vora 5 years, 8 months ago

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In a flight of 600km the speed of the aircraft was slowed down due to bad weather. The average speed of the trip.was decreases by 200km/hr and thus the time of flight increased by 30 min . Find the average speed of the aircraft

Posted by Collection Lover'S 5 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 8 months ago

Let the duration of the flight be x hours.

Then,600/x-600/x + (1/2)= 200
         600/x-1200/2x + 1= 200
         x(2x + 1) = 3
         2x² + x - 3 = 0
        (2x + 3)(x - 1) = 0
         x = 1 hr.

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Collection Lover'S 5 years, 8 months ago

Pl ans dis fast This is board ques 2020 standard

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ANSWER

Solve for X 1 upon X + 4 minus one upon X + 7 equals to 11 upon 30 X = 2 - 47

Posted by Sumit Prasad 5 years, 8 months ago

CBSE > Class 10 > Mathematics