An observatory has the shape of a right circular cylinder surmounted by a hemisphere. If the radius of the cylinder is 14 ft and its altitude measures 30 ft, what is the surface area of the observatory? If 1 gal of paint covers 300 ft^2, how many gallons are needed to paint the surface if it requires two coats?
An observatory has the shape of a right circular cylinder surmounted by a
hemisphere. If the radius of the cylinder is 14 ft and its altitude measures 30 ft, what is the surface area of the observatory? If 1 gal of paint covers 300 ft^2, how many gallons are needed to paint the surface if it requires two coats?
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