Question

find the area of shaded portion all corners are right angle

Answer 1

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Answer 2

Area if whole rectangle is

19.6*15 m square=253.5

Area of unshaded portion

(19.6-5.4)*(15-4)

14.2*11=156.2 m square

Hence area of shaded portion
253.5-156.2=97.3 M square

I hope this helps