Question

if a solid sphere has a diametre of 7m, then its surface area is

Answer 1

Answer:

Diameter of sphere = 7 m

Radius of sphere = 7/2 m

surface area of sphere = 4 pie r²

= 4 × 22/7 × 7/2 × 7/2

= 22 × 7

= 154 sq. m