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Mathematics Subtest

Competency 2—Knowledge of geometry and measurement

A building contractor needs to compute the volume of air contained in a building with a rectangular floor, as shown in the figure below. The building is 20 feet long, 4 yards wide,  9 and a half feet high on two sides  and 15 feet high from the floor to the peak. What is the volume of air in the building in cubic feet?

A line drawing of a simple building. The figure shows a line drawing of a simple rectangular building with a peaked roof. The rectangular base is dimensioned as 4 yards wide and 20 feet long. One side wall is dimensioned as 9 and a half feet high. The end wall is dimensioned as 15 feet from the base to the peak of the roof.

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Enter to expand or collapse answer.Answer expanded
Correct Response: C.