Question

find the area of the shaded portion

Answer 1

Area of the shaded region= ar(ABCD) - [ar(ΔEAF) + ar(ΔEBC)]
=10×18 -[(1/2 × 6 × 10) + (1/2 × 8 × 10)]
=180 - (30+40)
=180-70
=110cm²

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