Question

What is the ratio of the total surface area of a solid hemisphere to the square of its radius? (PLEASE ANSWER WITH PROCESS)

Answer 1

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let radius of the sphere = r
ratio= total surface area of hemi sphere/radius^2
total surface area of hemi sphere=3*pi*r^2
=(3*pi*r^2)/r^2
=3*pi
=3*22/7
=66/7
=66:7