Question

a rectangular piece of paper 44 cm long and 16 cm broad is folded along its length to form a cylinder what is the radius of the cylinder what is its volume

Answer 1

CSA = Area of rectangle = 2πrh
Therefore r = CSA/2πh
=( 904/2× π ×16) cm sq.
= 7 cm
Volume of cylinder = πr2h
= (π × 49 × 16)cm cu.
= 2464 cm cu.