 # RD Sharma Solutions Class 8 Mathematics Solutions for Surface Area and Volume of Right Circular Cylinder Exercise 22.2 in Chapter 22 - Surface Area and Volume of Right Circular Cylinder

Question 3 Surface Area and Volume of Right Circular Cylinder Exercise 22.2

The area of the base of a right circular cylinder is 616 cm2 and its height is 25 cm. Find the volume of the cylinder.

We have,

Area of base of right circular cylinder = 616 cm2

Height of cylinder = 2.5 cm

Let the radius of cylinder be ‘r’ cm By using the formula,

Area of base of right circular cylinder = πr2

So,

πr2 = 616

22/7 × r2 = 616 r2 = 616 × 7/22

= 196

r = √196

= 14cm

∴ Curved surface area of cylinder = 2πrh

= 2 × 22/7 × 14 × 2.5

= 220 cm2

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