Question

Hemisphere bowl is made of steel 0.25 CM thick the inner radius of the bowl is
5 cm find the outer and inner curved surface area of the bowl

Answer 1

Inner radius of hemispherical bowl = 5 cm

Thickness of the bowl = 0.25 cm

∴ Outer radius (r) of hemispherical bowl = (5 + 0.25) cm

= 5.25 cm

Outer CSA of hemispherical bowl = 2πr2



Therefore, the outer curved surface area of the bowl is 173.25 cm2.

Answer 2

Refer to the attachment