In the adjoining figure, OABC is a square of side 7cm. OAC is a quadrant of a circle with O as centre. The area of the shaded region is
a. 10.5cm^2
b. 38.5cm^2
c. 49cm^2
d. 11.5cm^2
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Answer:
a. 10.5 cm ^2
Explanation:
area of squar OABC = 7×7 = 49
area of quadrant OAC of a circle = 1/4 × 7×7×22/7
= 77/2 = 38.5
area of shaded region = area of OABC - area of OAC
= 49-38.5= 10.5
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