Answer:
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Step-by-step explanation:
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Formula
Area = (B1 + B2)*h/2
Area = 72 in²
B1 = x
B2 = x +6
h = 6 in
Substitute and Solve
Area = (x + 6 + x)*6/2 = 72 Divide by 2
Area = (2x + 6)*3 = 72 Remove the brackets
Area = 6x + 18 = 72 Subtract 18
6x = 72 - 18
6x = 66 Divide by 6
x = 66/6
x = 11
B1 and B2
Base 1 = 6
Base 2 = 12
