3Calculate the area of the shaded portion .
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Answer:
246 m²
Step-by-step explanation:
Area of rectangle = l*b
Area of whole fig = 15*20 = 300m²(Resembling a rectangle)
Area of inner rectangle :
l = 20-(7+4) = 20-11 = 9 m
b = 6m
Area = l*b = 6*9 = 54m²
Now Area of shaded = 300-54 = 246 m²