Question

. The formula for finding volume of

cylinder is

(a) 2 2h

(b) 2 ℎ

(c) ℎ

(d) 2h​

Answer 1

Correct option is

D

If r is doubled and h is divided by 4, V remains the same.

Given, V=πr

2

h

If r and h are doubled then volume V will be eight times the original.

If r is increased by 2, then we cant have a relation between previous and present volume because V is directly proportional to r

2

.

If r doubled and h is halved then volume V will be twice the original.

If r doubled and h is divided by 4, then volume V will be same as original.

So, the correct option is D.

Answer 2

$\colorbox{pink}{option \: d \: 2h}$

$\colorbox{pink}{stay \: happy}$