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Given: KLMN is a trapezoid, m∠K = 90°, LM = 9, KN = 18, MN = 15.

Find: Area of KLMN

Please I really need help!!!!

1 answer

drop an altitude from M to P on KN.
Then PM = √(15^2-9^2) = 12

the area is thus (9+18)/2 * 12

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