A footing for a fence is 2 feet deep, 1 foot wide and 40 feet in length. How many cubic yards of concrete are needed?

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Multiple Choice

A footing for a fence is 2 feet deep, 1 foot wide and 40 feet in length. How many cubic yards of concrete are needed?

Explanation:
To find how much concrete is needed, first determine the volume of the rectangular footing. Multiply its dimensions: length times width times depth. That’s 40 ft × 1 ft × 2 ft = 80 cubic feet. Concrete is ordered by cubic yards, and one cubic yard equals 27 cubic feet. Convert the volume: 80 ft³ ÷ 27 ft³/yd³ ≈ 2.96 yd³. So, about 2.96 cubic yards of concrete are required (roughly 3 yd³).

To find how much concrete is needed, first determine the volume of the rectangular footing. Multiply its dimensions: length times width times depth. That’s 40 ft × 1 ft × 2 ft = 80 cubic feet.

Concrete is ordered by cubic yards, and one cubic yard equals 27 cubic feet. Convert the volume: 80 ft³ ÷ 27 ft³/yd³ ≈ 2.96 yd³.

So, about 2.96 cubic yards of concrete are required (roughly 3 yd³).

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