What is the area of the trapezoid shown below?

Answer:
18 units²
Step-by-step explanation:
Solve for height:
4² + x² = 5²
16 + x² = 25
9 = x²
x = 3
Solve for area:
Formula = (base1+base2)h / 2
(4 + 8)* 3 ÷ 2
12 * 3 ÷ 2
36 / 2 = 18
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