Question

The curved surface area of a cylinder is 1000sq cm and the radius of its base is 21 CM. Find the total surface area of cylinder

Answer 1

Given:
Curved surface area of cylinder =1000Sq cm
Radius of cylinder=21cm

2*22/7*21*h=1000

44*3*h=1000

h=1000/44*3

h=1000/132

h=250/33

Total surface area of cylinder=2*22/7*21(21+250/33)

132(943/33)

132(28.57)

3771.24 sq cm

Total surface of cylinder = 3771.24Sq cm