Question

Find the area of curved surface if area of base of cylindrical tank is 176 cm² and height is 30 cm.

Answer 1

Let r cm be the radius of base.

Then, circumference of base = 2πr cm.

According to question,

2πr = 176

r = 28 cm

h = 30 cm.

Area of curved surface = 2πrh ,

= 2. 22/7. 28.30

= 5280 cm²