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Question

If 4 congruent circles of radius 1 are tangent to the sides of a square as shown in the figure, what is the area of the shaded region?

  1. 1 plus straight pi
  2. 2 plus straight pi
  3. 4 minus straight pi
  4. 6 minus straight pi

hintHint:

area of shaded region=(2)(2)- 4(π*1*1)/4

The correct answer is: 4 minus straight pi


    side of square formed by four circles=2
    radius of circle =1
    area of shaded region=(2)(2)- 4(π*1*1)/4
                                        =(4-π) i the correct answer

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