Question

A rectangular piece of paper of dimensions 20 cm × 14 cm is rolled along the breadh to form a cylinder find the radius of the base of the cylinder so formed

Answer 1

14=2πr find r now........

Answer 2

Answer:

Radius of base = 3.18 cm

Step-by-step explanation:

Dimensions of rectangular piece of paper = 20 cm × 14 cm

Length = 20 cm

Breadth = 14 cm

The rectangle is rolled along the breadth so the breadth becomes height of the cylinder and the length becomes circumference of the base of cylinder

⇒ Circumference of base = 20 cm

⇒ 2π × radius of base = 20

⇒ Radius of base = 3.18 cm