What is the area of the shaded part in the figure, if its given that the side of square ABCD is 90 m and the side of square PQRS is 100 m?
A
1900m2
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B
2000m2
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C
1000m2
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D
2500m2
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Solution
The correct option is A1900m2 Given: Side of square ABCD = 90 m Side of square PQRS = 100 m Area of the shaded region = Area of square PQRS - Area of square ABCD = 1002−902 = 10000−8100 = 1900m2 ∴ Area of the shaded region is 1900m2.