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Question

Find the area of the shaded part in the figure given below. (Take π = 227)(All the dimensions are in cm)


A

11 cm2

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B

10.5 cm2

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C

9.5 cm2

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D

11.5 cm2

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Solution

The correct option is B

10.5 cm2


Here we have two figures: a square of side 7 cm and a circle of diameter 7 cm, or radius 72 cm
Area of the shaded portion = Area of the square – Area of the circle

= a2πr2 (where a is the side of the square and r is the radius of the circle)

= 72227×72×72

= 49 – 38.5

= 10.5 cm2


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