Question

Worksheet 4
1.
Find the curved surface area and total surface area of a right circular cylinder
whose height is 15 cm and the radius of the base is 7 cm.​

Answer 1

Answer:

Radius of cylinder ( r ) = 7 cm

Height of cylinder ( h ) = 15 cm

C.S.A = πr²h

= 22/7 × 7 × 7 × 15

= 2310 cm²

T.S.A = 2πr ( h + r )

= 2 × 22/7 × 7 ( 15 + 7 )

= 2 × 22 × 22

= 968 cm²