Question

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Answer 1

Given area of trapezium 24.5 cm²

1/2 x h x sum of parallel sides = 24.5

1/2 x AB x 10+4 = 24.5

1/2 x AB x 14 = 24.5

AB = 24.5 x 2 x 1/14

AB = 3.5 cm

Now area of shaded region =

Area of trapezium - area of quadrant

= 24.5 - 1/4 x π r²

= 24.5 - 1/4 x 22/7 x 3.5²

= 24.5 - 9.625

= 14.875 cm²

Ans 14.875 cm²