Respuesta :

Answer:

82.5 ft²

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂)

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 7.5, b₁ = 7 and b₂ = 15 , then

A = [tex]\frac{1}{2}[/tex] × 7.5 × (7 + 15) = 0.5 × 7.5 × 22 = 82.5 ft²

altavistard

Answer:

135 ft^2 (first answer choice)

Step-by-step explanation:

Convert the length of the 7 yd base to feet:  21 ft.

Then the average length of the trapezoid is (15 ft + 21 ft)/2 = 36/2 ft = 18 ft.

The area of the trapezoid is then (average length)(height), or

A = (18 ft)(7.5 ft) = 135 ft^2 (first answer choice)

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