Answer:
34.65 in²
Explanation:
You want the area of the shaded triangular portions of the trapezoid figure shown.
Triangle
The area of a triangle is given by the formula ...
A = 1/2bh
The sum of the areas of the two triangles is ...
A = 1/2(5.2 in)(7 in) +1/2(4.7 in)(7 in)
A = (1/2)(7 in)(5.2 +4.7 in) = (3.5 in)(9.9 in) = 34.65 in²
The shaded area is 34.65 square inches.
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