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Three circles with radii 1,2 and 3 inche...


Three circles with radii 1,2 and 3 inches are externally tangent to one another , as shown in the figure above . The area , in square inches , of the sector of the circle of radius 1 that is cut off by the line segments joining the center of that circle to the centers of the other two circles (the shaded area ) is

A

`pi`

B

`pi/2`

C

`pi/3`

D

`pi/4`

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The correct Answer is:
D
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