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here the height us not present so,
ar(trap.ABCD)=24.5sq cm
similarily
1/2[AD+BC]×AB=24.5
Here,AB=3.5cm
so, radius=7/2cm
area of 1 quadrant of circle=1/4×22/7×7/2 cm ×cm
area of 1quadrant circle=2.75cm
area of shaded portion=24.5cm^2-2.75cm^2
=21.75 sq cm
ar(trap.ABCD)=24.5sq cm
similarily
1/2[AD+BC]×AB=24.5
Here,AB=3.5cm
so, radius=7/2cm
area of 1 quadrant of circle=1/4×22/7×7/2 cm ×cm
area of 1quadrant circle=2.75cm
area of shaded portion=24.5cm^2-2.75cm^2
=21.75 sq cm
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