Question

A rectangular piece of paper of dimensions 22cm by 12cm was rolled along its length to form a cylinder. Find the volume of the cylinder(how to do)

Answer 1

answer is in the above picture

Answer 2

Answer:

length=22 cm = circumference=2πr

2πr= 22

2×3.14×r =22

6.28×r= 22

r= 22/6.28= 3.5 cm

height = breadth = 12 cm

vol of cylinder = πr^2h

3.14×3.5× 3.5.× 12 =461.58cm^3

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