in adjoining figure ABCD is a trapezium ACB is a triangle and ABCD is a parallelogram .The area of a triangle ECB is 64 CM². EB is 8 cm and AE is 30 cm. Find the area of trapezium ABCD
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Step-by-step explanation:
area of triangleBCE= 1/2*b*h
210=1/2*6*h
210=1/2*6h
210=3h
210/3= h
70= h
therefore height of triangle is70 cm
area of trapezium = 1/2*sum of its parallel sides * distance between them
=1/2*(6+24+24)*70
=1/2*54*70
= 27*70
= 180 cm sq
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