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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19-07-2014
Mathematics

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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.

Sagot :

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Pulkitidn Pulkitidn · Answer 1 · 2014-07-19T14:30:26-04:00

Pulkitidn Pulkitidn

19-07-2014

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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