A flower bed in the corner of your yard is in the shape of a right triangle. The perpendicular sides of the bed measure 7 feet and 9 feet. Calculate the area of the flower bed.

The area of a right triangle is one-half the product of its perpendicular sides. Using 7 feet and 9 feet: (7 × 9) ÷ 2 = 63 ÷ 2 = 31.5 square feet. The correct choice is 31.5 sq. ft.

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