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प्रश्न
In the given figure, OABC is a square of side 7 cm. If COPB is a quadrant of a circle with centre C find the area of the shaded region.
उत्तर
Area of shaded region = Area of square OABC − Area of quadrant COPB having radius OC
`= (Side)^2 - 1/4(pixx"r"^2)`
`=(7)^2 - 1/4[22/7xx7^2]`
= 49 - 38.5
= 10.5 cm2
Area of shaded region = Area of square OABC − Area of quadrant COPB having radius OC
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