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jok3333 [9.3K]
3 years ago
14

A commemorative plaque is the shape of a trapezoid with a height of 8 inches and bases that measure 12 inches and 15 inches. Wha

t is the area of the plaque. (1/2 (b1 + b2) x h )
Mathematics
1 answer:
aleksandrvk [35]3 years ago
4 0
27, hope this helps dude
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Answer:

a) x=15\\b) AD\ is\ not\ parallel\ tp BC

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Hence,\\As\ Angle\ A\ and\ Angle\ B\ are\ co-interior\ angles, if\ they\ are\\ supplementary\ then\ AD \parallel BC.\ Lets\ check\ that\ out.\\Hence,\\Angle\ A=2x=2*15=30\\Angle\ B=90\ [Given]\\Hence,\\As\ 90+30\neq 180,\\Angle\ A +Angle\ B\neq 180\\Hence,\\As\ Angle\ A and\ Angle\ B\ are\ not\ supplementary,  AD\ will\ not\ be\ parallel\ to\ CB.

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