Answer:
38 in²
Explanation:
The area (A) of a trapezium is calculated using the formula
A = h (a + b)
where a, b are the parallel bases and h the perpendicular height
here a = 12, b = 7 and h = 4, hence
A = 0.5 × 4 × (12 + 7) = 2 × 19 = 38 in²
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h (a + b)