Question

Find the radius of the solid hemisphere if it’s tsa is 4158cm2

Answer 1

HEMISPHERE:-

radius = r = ?

             TSA = 4158cm²

             3πr² = 4158

3 × 22/ 7 × r² = 4158

                  r² = (4158 × 7) ÷ 3 × 22

                  r² =  29106 ÷ 66

                    r = √441 = 6.68

∴ Radius of the hemisphere = 6.68cm.

Answer 2

The answer is 6.68cm....