Question

find the volume curved surface and total surface area of the cylinder radius is 7 cm and height is 50 cm

Answer 1

Radius = 7cm
Height = 50cm

To find :
Volume of cylinder = πr2h
= 22/7 × 7 × 7 × 50
= 154 × 50
= 7700 cm3

Curved surface area of cylinder = 2πrh
= 2 * 22/7 * 7 * 50
= 44 * 50
= 2200 cm2

Total surface area of a cylinder : 2πr (r+h)
= 2 * 22/7*7*57
= 44 * 57
= 2508 cm2..