Question

find the volume of the cylinder if the
circumference of the cylinder is 132 cm
and the height is 25cm.​

Answer 1

Answer:

Given:

Circumference of the base of cylinder = 132 cm and height (h) = 25 cm

To find: Volume of the cylinder

i. Circumference of base of cylinder = 2πr

∴ 132 = 2 x (22/7) x r

∴ (132 x 7/2 x 22)

= r (6 x 7)/2 = r ∴ 3 x 7 = r ∴ r = 21 cm

ii. Volume of the cylinder = πr2h = (22/7) x 21 x 21 x 25 = 22 x 3 x 21 x 25 = 34650 cc ∴ The volume of the cylinder is 34650 cc

Answer 2

Answer:

Step-by-step explanation:

Circumference of the cylinder=132cm

Height of the cylinder=25cm

Circumference of cylinder = 2πr

So,

=>132 = 2 x (22/7) x r

=> (132 x 7/2 x 22) = r (6 x 7)/2 = r

=> 3 x 7 = r  

∴ r = 21 cm

Volume of the cylinder = πr^2h  

= (22/7) x 21 x 21 x 25 = 22 x 3 x 21 x 25

= 34650 cm^3

 ∴ The volume of the cylinder is 34650 cm^3

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