Question

1 The diameter of the moon is approximately one fourth of the diameter of the earth.
Find the ratio of their surface areas.
A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is​

Answer 1

Answer:

1:16 is the answer and mark me as the brainiest

Step-by-step explanation:

Answer 2

Answer:

173.25 sq.cm.

Step-by-step explanation:

Given, Inner radius of the bowl =5 cm

Thickness of steel =0.25 cm

Outer radius of the bowl=5+0.25=5.25 cm

Outer curved surface area of the bowl = 2πR

=2× 22/7 ×(5.25) square

=173.25 sq.cm.