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Mathematics, 31.03.2020 03:42 PastelHibiscus

A hammered dulcimer is shaped like a trapezoid. The top edge is 17 in. long, and the bottom edge is 39 in. long. The distance from the top edge to the bottom edge is 16 in. What is the area of the dulcimer?

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A hammered dulcimer is shaped like a trapezoid. The top edge is 17 in. long, and the bottom edge is...
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