An observatory has the shape of a right circular cylinder surmounted by a hemisphere. If the radius of the cylinder is 14ft and its altitude measures 30ft, what is the surface area of the observatory? If 1 gal of paint covers 300ft² how many gallons are needed to paint the surface if it requires two coat.

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A: Assume radius of the hose be r and length be l. Given, r=0.5 inches and l=20 ft

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A: base of the triangle = 216 - 9 =2 6 The dark blue part shows the amount of water in the tank at t…

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A: Circles

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A: Introduction: Units of measure are needed so as to live these values. Sometimes the units of…

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Q: A sphere has a diameter of 1.8 cm. Find its surface area to the nearest square centimeter. (Use T=…

A: Given:      The diameter of sphere = 1.8 cmThe radius of sphere =1.82=0.9 cm…

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A: Area covered by the masking tape divided by width of the tape gives the length of the tape used .

Q: .A circular swimming pool with a diameter of 30 feet has a square deck around it that is 48 feet…

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