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Very easy see . Room is in cuboidal shape so we have two ways of finding this (1) by total surface area - area of base (2) and by Curved surface area +area of ceiling Here area of base and ceiling will be area of rectangle means length* breadth because top and bottom is of rectangle shape

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Ex 13.1 Q 2

Posted by Varun Tiwari 2 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

K_Hushii 🍁 2 years, 10 months ago

Given, length =5m , breadth =4m and height =3m Acc to question Area of the four walls =lateral surface area . 2(bh +hl) = 2h (b+l) =2×3 (4+5) = 2×9×3 =54sq Area of ceiling =l×b =5×4 =20 m/sq Total area of wall and ceiling of the room = 20 +54= 74m sq Now cost of white washing for 1msq = ₹7.50 Cost of white washing for 74m sq = 74 ×7.50 = ₹555

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7√5-12√5+4√5=

Posted by Carleen Fernandes 2 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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In 2 + x + x square the coefficient of x square is

Posted by Dhanshri Rahate 2 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Ridhima Khitta 2 years, 10 months ago

Here the cofficient will be 1

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Shantanu Walunj 2 years, 10 months ago

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K_Hushii 🍁 2 years, 10 months ago

The coefficient of x sq is 1

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Prince Kumar 2 years, 10 months ago

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Is it possible to construct a triangle with length of its side as given below?Give for your answer

Posted by Azzahir Hussain 2 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Ridhima Khitta 2 years, 10 months ago

Yes

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Devendra Singh 2 years, 10 months ago

4+5

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Azzahir Hussain 2 years, 10 months ago

5cm,4cm,9cm

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5. If √x + √√x - √I- x = 1, then x is equal to

Posted by Rashmi Chand 2 years, 10 months ago

CBSE > Class 09 > Mathematics

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What is value of √(3+2√2)

Posted by Devansh Bokade 2 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Aman Harsh 2 years, 10 months ago

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Vaibhav Chaudhary 2 years, 10 months ago

✓2+1

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What is the value of (3+2√2)

Posted by Devansh Bokade 2 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Piyush ? 2 years, 10 months ago

Root 2-1

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Sin70 sin20+cos20 cosec70

Posted by Kumar Namam 2 years, 10 months ago

CBSE > Class 09 > Mathematics

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ⓦⓗⓐⓣ ⓘⓢ ⓣⓗⓔ ⓒⓤⓑⓔ ⓞⓕ 88ⓒⓜ2 ⓘⓕ 9 ⓘⓢ ⓘⓣⓢ ⓓⓘⓥⓘⓓⓔⓡ

Posted by Aditya Bisht 2 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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Please answer my questions

Posted by Tejasv Gehlot 2 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Diksha Laniya🐥 2 years, 10 months ago

Question kya hai tell me question and then I tell you answer

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In the given figure, p||q, find the value of x (In figure, 120° and 30° are given for angles) A)150° B)120 C)100 D)30

Posted by K Nikki 2 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Garima Kapoor 2 years, 10 months ago

Where is figure..?

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In the given figure , p || q , find the value of x

Posted by K Nikki 2 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Devansh Bokade 2 years, 10 months ago

Where is figure?

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Abhishek Dubey 2 years, 10 months ago

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Answer of lesson 7, 7.4 question no 3

Posted by Ashutosh Bharat 2 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Krissh Sharma 2 years, 10 months ago

x²=2,then x³=

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21√12/10√27

Posted by Anurag Tomar 2 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Jaiditya Sinha 2 years, 10 months ago

7/5 is your answer.

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Aastha Costin 2 years, 10 months ago

7/3 is a Answer sir

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x²=2 then x³=?

Posted by ?? Bear 2 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Jaiditya Sinha 2 years, 10 months ago

2√2

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Hitesh Kumar 2 years, 10 months ago

How this come

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Ranveer Singh 2 years, 10 months ago

2√2

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What is the formula of isosceles triangle and explain it

Posted by Bhupendra Meena 2 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Vaibhav Chaudhary 2 years, 10 months ago

b/4✓4a²-b²

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꧁ঔৣ☠︎Happy☠︎☬?ঔৣ꧂ Khatri 2 years, 10 months ago

its has to side equal

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A solid cube of side 12 cm is cut into eight cubes of equal volume. What will be the side of the new cube ?

Posted by Rohini Prajapati ..... 🤪 2 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Siddu Pattanashetti 2 years, 11 months ago

1.5 cm i.e 12 ÷ 8

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Tell me

Posted by Adarsh Sonkar 2 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Diksha Laniya🐥 2 years, 11 months ago

What ask your question

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the areas of two similar triangles are 25 an 36

Posted by Kamal Prajapati 2 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

11 × 50

Posted by Yumi Yumi 2 years, 11 months ago

CBSE > Class 09 > Mathematics

5 answers

Kesar Arora 2 years, 10 months ago

550

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Aastha Costin 2 years, 10 months ago

550

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Rutika Tilekar 2 years, 11 months ago

550

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Sejal Sejal 2 years, 11 months ago

550 ans

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Mihir Yadav 2 years, 11 months ago

550 easy peasy

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The positive solutions of the equation is ax+by+c=0

Posted by Gowtham R 2 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Rohini Prajapati ..... 🤪 2 years, 11 months ago

The positive solutions of the equation is ax + by + c =0 always lie in the 1st quadrant.

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2 ka root value

Posted by Ayushkumar Kumar 2 years, 11 months ago

CBSE > Class 09 > Mathematics

5 answers

Depender Singh 2 years, 11 months ago

1.414

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Depender Singh 2 years, 11 months ago

It is by mistake

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Depender Singh 2 years, 11 months ago

https://teams.microsoft.com/l/meetup-join/19%3ameeting_MzU2ZTYyMzctYjMwZC00MTY0LTkxYTEtMGZjNGM2ZTkyYzU3%40thread.v2/0?context=%7b%22Tid%22%3a%2299678ec3-0b06-401a-8d1a-b51987b8be63%22%2c%22Oid%22%3a%225ed3b4db-9353-4f77-9c93-c305f7c9f701%22%7d

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Kesar Arora 2 years, 11 months ago

1.414

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Riya Tomar 2 years, 11 months ago

1.414

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3x - 2y =-2 graph

Posted by Vipasha._. Sorathiya 2 years, 11 months ago

CBSE > Class 09 > Mathematics