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area of l + area of lll = area of ABCD - area of two semi circle with radius 5 cm
= 10 x 10 - 2 x 1/2 x π x 5 x 5
= 100 - 3.14 x 25
= 100 - 78.5 = 21.5 cm ^2
similarly area of ll + area of lV = 21.5
so area of the shaded region = area of ABCD - area of unshaded region
= 100 -2 x 21.5 = 100 - 43 = 57 cm ^ 2
answer is 57
= 10 x 10 - 2 x 1/2 x π x 5 x 5
= 100 - 3.14 x 25
= 100 - 78.5 = 21.5 cm ^2
similarly area of ll + area of lV = 21.5
so area of the shaded region = area of ABCD - area of unshaded region
= 100 -2 x 21.5 = 100 - 43 = 57 cm ^ 2
answer is 57
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