Answer
h = 12
Work Step by Step
Substitute the values for A, B, and b into the equation:
A = $\frac{1}{2}$h(B + b)
60 = $\frac{1}{2}$h(7 + 3)
Solve for h:
60 = $\frac{1}{2}$h(10)
60 = 5h
12 = h
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