Question

Q1.The circumference of the base of a cylinder is 132cm and its height is 25cm.
Find the volume of the cylinder?

Answer 1

Explanation:

Given

Circumference of the base of a cylinder is 132cm

Height of the cylinder is 25cm

To Find

we have to find the volume of the Cyclinder

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Since, cylinder have circular bases at both the ends so,it's circumference will the circumference of the circle.

circumference of the base of cylinder=2πr

➙2πr= 132

➙πr= 66

➙22/7×r=66

➙r= 66×7/22

➙r= 33×7/11

➙r= 3×7

➙r= 21

Hence,radius of Cyclinder is 21cm.

Now,we have to find its volume

Volume of cylinder= πr²h

➙volume of Cyclinder= 22/7×21²×25

➙volume of cylinder= 22/7×441×25

➙Volume of Cyclinder= 22×63×25

➙Volume of Cyclinder=34,650cm³

Extra information=>

• Curved surface area of Cyclinder= 2πrh
• Total surface area of Cyclinder= 2πr(r+h)

=>Volume always written in cubic units.

Answer 2

Answer:

circumference of base of cylinder=132

2πr=132

r=66×7/22

r=21cm

volume of cylinder=πr^2h

=22/7×21×21×25

=34650 cm^3

hope it helps you dear☺️☺️☺️