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16-02-2022
Mathematics

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Sonia makes a wooden frame around a square picture. The frame is made of four congruent trapezoids. The shorter base is 9 in, the longer base is 12 in, and the height is 1.5 in. What is the area of the picture frame?

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16-02-2022

answer

congruent trapezoide for one

0,5(9+12)×1,5=15,75

area of picture frame =4×15,75=63

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