Math, asked by happybe, 11 months ago

CBSE class IX NCERT pg. no. 217 ex. 13.2 q. No. 11.... plzzz urgent

Attachments:

Answers

Answered by Anonymous

6

Answer:

R = 3cm , h = 10 .5 cm

surface area of penholder = c.s.a + area of base

= 2πrh + πr^2

2×22/7×3×10.5 + 22/7 × 3 × 3

198+198/7

1584/7

use of cardboard = 1584/7 ×35

= 7920 cm ^2

Previous Question

Next Question

Similar questions

Math, 5 months ago

ஒரு வரிசையில் உள்ள மாணவர்களில் 'X' என்பவர் இடப்புறமிருந்து 17வது இடமும் மற்றும் 'Y' என்பவர் வலப்புறமிருந்து 10வது இடம். 'Y' என்பவர் 5 இடம் இடப்புறமாக மாற்றப்பட்டால் இடப்புறத்திலிருந்து 'X' என்பவருக்கு அடுத்த நபராக Y மாற்றப்படுகிறார் எனில் எத்தனை மாணவர்கள் அந்த வரிசையில் உள்ளனர்...

Math, 5 months ago

fatorise 3y4 – 108y2...

Math, 5 months ago

find equivalent fraction /21 =2/3...

Math, 11 months ago

x^3-x^2+ ax + x-a-1...

Science, 11 months ago

some living beings can produce carbonised matter from un carbonised matter in presence of sunlight and ..............

English, 1 year ago

There was a man walking in the desert. It was an especially hot day that day. In the distance, the man suddenly saw a restaurant. He rejoiced and ran to the restaurant and immediately asked the waiter for a glass of water. Instead, the waiter pulled out a gun and pointed it at the man’s head. The man replied with, “thank you”. Why did the man say “thank you”? Can you guess it?

Biology, 1 year ago

flood of Kerala acknowledgement...

Sociology, 1 year ago

which of the following is an important feature of India as a secular state . 1 it has no states religion 2. it has one state religion 3. it has multiple state religion 4. non of these...