kajol927 kajol927

10-05-2018
Mathematics

contestada

triangle abc and triangle bcd have vertices A(-6, -7), B(-6, 4), C(2, -7), D(8, 4) what is the area in square units of trapezoid ABCD which is formed by the two triangles?

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evgeniylevi evgeniylevi

10-05-2018

Try this solution/explanation:
According to the attached graph AC||BD, AB⊥BD and AB⊥AC.
|BD|=14; |AB|=11; |AC|=8.
All the details are in the attachment.

answer: 121 (sq.units).

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