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26 July, 07:44

A rain barrel is a right circular cylinder. If 1ft^3 = 7.5 gallons, how many gallons of rainwater can the barrel hold?

Use 3.14

Barrel is 1.35ft left to right ... And 5ft top to bottom.

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  1. 26 July, 08:34
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    Find volume of right circular cylinder

    V = pie * r * r * h

    = 3.14 * 1.35/2 * 1.35/2 * 5 ft^3

    = 7.153 ft^3

    Since 1ft^3 = 7.5 gallons

    7.153 ft^3 = 7.5 * 7.153 gallons

    i. e equal to 53.65 gallons
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