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Chapter 6.2 question no. 9 can someone solve it for me

Posted by Sneha Tripathi 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Anshul Kumar Parira 6 years, 3 months ago

Draw the figure with the help of hints given below Given: ABCD is a trapezium and ABllDC Construction: draw a line EO such that DCllEOllAB To prove: AO/BO=CO/DO Proof: In triangle ADC DE/EA=AO/CO (By B.P.T.) Consider it as equation 1 In triangle ADB DE/EA= BO/DO (ByB.P.T.) Consider it as equation 2 From equation 1 and 2 we get AO/CO= BO/DO = AO/BO=CO/DO (By alternendo) Hence, proved

ANSWER

The time taken by a person to cover 150 km was 2and half hour more than the time taken in the returned journey. If he returned at a speed of 10 km per hour more than the speed while going. Find speed per hour in each direction

Posted by Priksha Sangwan 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The numerator of a fraction is 3 less than its denominator. If 2 is added to both the numerator and denominator. Then the sum of new fraction and original fraction is 29/20. Find the original fraction .

Posted by Priksha Sangwan 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Aadya Singh ? 6 years, 3 months ago

Fraction is 7/10.

ANSWER

Guidelines for Mathematics Laboratory in Schools

Posted by Mishal Manaf 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Chapter 10

Posted by Dinesh Gupta 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the perimeter of shaded region where adc aeb and bfc are semicircles on diameter ac ab and bc respectively

Posted by Merlyn Stephen 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Elemination method

Posted by Rahul Baghotia 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

A.P. = 3,8,13........253 Find last 20th term..?

Posted by Pachu Sona 6 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

Anshul Kumar Parira 6 years, 3 months ago

As it is given from laat so, a=253 d= (-5) a20 = ? an a+(n-1)d a20= 253+(20-1)(-5) = 253+(19)(-5) =253-95 158 Therefore 20th term of an AP from last is 158

Arpit Maurya 6 years, 3 months ago

Write this in given form 253.......13,8,3 Here, a= 253 and d=8-3 =-5 An = 253+(20-1)(-5) =253 +19*(-5) = 253-95 = 158

Yogita Ingle 6 years, 3 months ago

3,8,13.......,253
To find 20th term form the last term we consider the sequence as follows
a = 253 and d = 3 - 8 = -5
an = a + (n - 1)d
a20 = a + (20 - 1)d
= 253 + 19 × (-5)
= 253 - 95
= 158
Hence, the 20th term from the last term is 158.

Aviral Goyal 6 years, 3 months ago

158

ANSWER

Will optional exercises come in board exam ?

Posted by Arshit Bhootna 6 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

❄️ Queen ❄️ 6 years, 3 months ago

Hmmm.. maths ki optional exercise m se bhi aaa skta hhh....??

The King ?? ( Never Give Up ) 6 years, 3 months ago

And other 10 marks will be on one word or fill in the blanks

The King ?? ( Never Give Up ) 6 years, 3 months ago

Yep of 10 marks

?? Thakur 06 ???? 6 years, 3 months ago

Ya

ANSWER

A tower is 50m high.Its shadow is x meters shorter, when sun's altitude is 45 than when it is 30 find 'x' correct to the nearest cm

Posted by Jayesh King 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Aviral Goyal 6 years, 3 months ago

37cm

ANSWER

The angle of elevation of the top of a tower from two points at distance A and B metres from the base and in the same straight line with it are complementary prove that the height of the tower is root ab metre

Posted by Jayesh King 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The nth term of an A.P. , the sum of whose nth term is Sn is....?explain

Posted by Pachu Sona 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Jayesh King 6 years, 3 months ago

We know, difference between two consecutive terms of an arithmetic progression (AP) must be same. e.g., if a is the first term and d is the common difference of an AP. then, series is : a , a + d , a + 2d , a + 3d , a + 4d...... are in AP now, nth term = = a + (n - 1)d sum of n terms = = a + (a + d) + (a + 2d) + ..... + [a + (n - 1)d] = (a + a + a ....n times ) + [d + 2d + 3d + .... + (n - 1)d ] = na + d[1 + 2 + 3 + ..... + (n -1)] = na + d[(n - 1)(n)/2 ] = n/2 [ 2a + (n - 1)d] hence, = n/2 [2a + (n - 1)d ]

The King ?? ( Never Give Up ) 6 years, 3 months ago

Sn=n/2+{2a+(n-1)d}

ANSWER

Point A(_1,y)and B(5,7) lie on a circle with centre o (2 , _ 3y) find the value of y and radius of the circle

Posted by Vijay Dhiman 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Vijay Dhiman 6 years, 3 months ago

Point A

ANSWER

One says ,"give me hundread , friend ! I shall then became twice as rich as you ". Other replies," if you give me ten , l shall be six times as rich as you". Tell me what is the amount of their (respective) capital.

Posted by ?? Thakur 06 ???? 6 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

The King ?? ( Never Give Up ) 6 years, 3 months ago

Ooops you are right aadya

The King ?? ( Never Give Up ) 6 years, 3 months ago

No

Aadya Singh ? 6 years, 3 months ago

40 and 170.

The King ?? ( Never Give Up ) 6 years, 3 months ago

??

ANSWER

In triangle ABC, DE||BC meeting AB at D and AC at E.If AB/BD=4 and CE=2cm, find the length of AE.

Posted by Shubhi Jain 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Jayesh King 6 years, 3 months ago

Step-by-step explanation: Here ABC is a triangle, In which and Also, Thus, ( by The alternative interior angle theorem) Similarly, Thus, By AA similarity postulate, By the property of similar triangles, ⇒ ( By multiplying -1 on both sides ) ⇒ ( By adding 1 on both sides) ⇒ ⇒ ⇒ ( because and CE=2 ) ⇒ But, AE = AC - CE = 8 - 2 = 6 Thus, AE = 6cm

ANSWER

Ex-13.1 Question number 8

Posted by Sameer Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Bhai koi bta sakta hai ki science aur math me kasie likee ki acha marks aaye

Posted by Yash Mishra 6 years, 3 months ago

CBSE > Class 10 > Mathematics

5 answers

❄️ Queen ❄️ 6 years, 3 months ago

Likhne k pattern k liye....apko sample paper dekhne chahiye.....aur...likne k liye bhi apko...likh likh kr practice krni padegi...

Devansh Buchasia 6 years, 3 months ago

Bhai.. Maths k liye .. Dekh harr particular sum ka formula or therom jo bhi apply kar raha sabh kuch detail kar k side m bracket de kar k likhna... Science k liye bio ka m bata sakta hun ki ... Answers point m likhna or main main words ko underline yaad se karna

Yash Mishra 6 years, 3 months ago

Exam likna ka pattern btao

❄️ Queen ❄️ 6 years, 3 months ago

Maths m.....sabse pehle...ncert kro...i hope abhi tk apka course complete ho gya hoga .....toh ncert se ek aur bar practice kro....aur ncert k example bhi kr lena......aur...phir rd ya rs se practice kro....ok?

❄️ Queen ❄️ 6 years, 3 months ago

Science m....ncert se padho aur.....uss k bad koi aur book jese s chand ya koi aur...usse padho.... Uss k questions k answer khud find kro....ncert k question answer bhi kr lina.....,?

ANSWER

Prove that 2root3 is irrational number

Posted by Prashant Raj 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

⛩Singh Emperor ???? 6 years, 3 months ago

Product of a rational and irrational always gives irrational. ???

ANSWER

Given 15 cot A =8. Find sin A and sec A.

Posted by Muskan Pandey 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Aadya Singh ? 6 years, 3 months ago

SinA = 15/17 and secA = 17/8.

Priyanka Bad 6 years, 3 months ago

Sin A =15/17 , Sec A = 17/8

⛩Singh Emperor ???? 6 years, 3 months ago

15 and 1/8

ANSWER

How would I score good marks in board exam

Posted by Gole Sherawat 6 years, 3 months ago

CBSE > Class 10 > Mathematics

8 answers

Priya Rawat 6 years, 3 months ago

Be contriverse in your study ..

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Shreya ji kuch batana tha

Shreya ... 6 years, 3 months ago

Sorry sabko..and bye too

Ankesh ..?? Fully Motivated 6 years, 3 months ago

For math..u go with owswaal it is best

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Make a time table....do quality study..do study with plan...ab n plan kr ke pado jyada book ke piche mt bhago ..jis book se pade ho ussi se revision kro...go with only ncert and sample paper...i m sure it is cover your 85 percent

Shreya ... 6 years, 3 months ago

So sorry..pk ji ...?

Shreya ... 6 years, 3 months ago

Do hardwork and regular revision

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Abhi se lag jao.....?

ANSWER

In a square of side 10 cm , 4 quadrants are made inside the square and find the area where these quadrant lie at the centre of square

Posted by Jayant Prasad 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

area of perimeter

Posted by Sayed Moula 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Ziyauddeen Ansari 6 years, 3 months ago

A+b whole square

ANSWER

Chapter 5 ex 5. 3 Question 3 part 4

Posted by Anjali Singh 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Ruchi Singh 6 years, 3 months ago

Shsshs

ANSWER

Ex 1 q 1

Posted by Thakur Raj 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Anjali Singh 6 years, 3 months ago

Hcf or lcm hi to nikal na hai

ANSWER

Show that √6+√2 is irrational number

Posted by Ravindra Ravi 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Krishna Tak 6 years, 3 months ago

Yes

ANSWER

√2x2 + 7x + 5√2=0

Posted by Priyanshu Sinha 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Harsh Kr 6 years, 3 months ago

No answer

Yogita Ingle 6 years, 3 months ago

√2 x² +7x +5 √2 = 0
⇒ √2 x² + 5x + 2x + 5√2 = 0
⇒ √2x² + 5x + √2*√2*x + 5√2=0
⇒ x(√2x + 5) + √2(√2x + 5) =0
⇒ (x+√2)(√2x+5) = 0
That gives x= - √2 or x= - 5/√2

ANSWER

G m frnds...have a good day

Posted by Ankesh ..?? Fully Motivated 6 years, 3 months ago

CBSE > Class 10 > Mathematics

21 answers

❄️ Queen ❄️ 6 years, 3 months ago

Gud afternoon

Brainly Buddy 6 years, 3 months ago

Plzzzzz bohot important h

Brainly Buddy 6 years, 3 months ago

Shreya plzz mujhe aapse baat krni h

Liya Mariam Biju 6 years, 3 months ago

Same to u.

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Bestie ji kl mai ye app uninstall kr dunga..jisse ki mind diverd n ho

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Lagta h ab agle saal milenge?????????

Shreya ... 6 years, 3 months ago

Mera 28 ko h last

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Ya

Shreya ... 6 years, 3 months ago

Ha ankesh ji or ap bhi..sabko all the best

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Mera 23 ko last h

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Mera 23 se...???

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Apna best dena ok

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Hm bhi ab school ni jayenge..ghar pr hi ab revision krenge

Shreya ... 6 years, 3 months ago

Mere 16 se

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Ok ab acche se baat 23 ko hogi because mere 14 se pre board h..

Shreya ... 6 years, 3 months ago

Na ji..aaj or kl rest krna h..?

Ankesh ..?? Fully Motivated 6 years, 3 months ago

I m also like u....aap school ni gaye

Shreya ... 6 years, 3 months ago

Family*

Shreya ... 6 years, 3 months ago

Hum acche h ji..famil bhi..or aap kaise h

Ankesh ..?? Fully Motivated 6 years, 3 months ago

Hello..kaisi h aap..and ur family

Shreya ... 6 years, 3 months ago

Gm..

ANSWER

What is the marking scheme of each chapter

Posted by Kashish Oswal 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gole Sherawat 6 years, 3 months ago

In board chapter-6,7,8,9,13 and 10 are most important chapters.

ANSWER

Which book is good for standard math?? After completing the NCERT book

Posted by Royal ?? Chundawat 6 years, 3 months ago

CBSE > Class 10 > Mathematics

8 answers

Royal ?? Chundawat 6 years, 3 months ago

Tq sakshi

Vinod Thakur 6 years, 3 months ago

Exam idea for standrd it is too good for you and i also used it ok and hi i am sakshi

Rudransh Sonkeshriya 6 years, 3 months ago

Cbse edu cart book available on Amazon

Roman?? Shivansh ? ( Have Trust On Himself ) 6 years, 3 months ago

Question Bank of oswaal and sample paper

Vikas Saini 6 years, 3 months ago

Educate book

Ashish Nainwal 6 years, 3 months ago

Ok

Royal ?? Chundawat 6 years, 3 months ago

Tq bro.

Shanoo Yadav 6 years, 3 months ago

Ncert exampler

ANSWER

Rd sharma ex 13.4

Posted by Shanoo Yadav 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

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