Question

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

Answer 1

Answer:

Step-by-step explanation:

As it is rolled along breadth . Height would be 14 cm.

The circle on its side would have perimeter as 20 cm.

2πr=20 r =35/11

Answer 2

when a rectangle is rolled into cylinder
then it's breadth changed into circumference of base of cylinder
So
2πr = 20
r = 20*7/2*22
r = 35/11 CM