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chubhunter [2.5K]
3 years ago
9

molly is making a sign in the shape of a trapezoid. One base is 18 inches and the other is 30 inches. How high must she make the

sign so its area is 504 square inches?
Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
The area of the trapezoid is calculated through the equation,
                            A = ((b₁ + b₂)/2) x h
where b₁ and b₂ are the bases and h is the height. Substituting the known values from the given above,
                          504 = ((18 + 30)/2) x h
The value of h from the equation is 21. Thus, Molly must make the trapezoid 21 inches high. 
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