Question

Find the curved surface area of 4 pillars if the height of pillars is 7.5m and the radius of the base is 2.5m

Answer 1

Answer:

471.24 m²

Step-by-step explanation:

Formula for curved surface area is;

A = 2πrh

We are given dimensions of a single pillar as;

Height; h = 7.5 m

Radius of base; r = 2.5 m

Thus;

A = 2π × 2.5 × 7.5

A = 117.81 m²

Since there are 4 pillars.

Total curved surface area is;

A_t = 4 × 117.81

A_t = 471.24 m²