97. If a circle of radius r is inscribed in a square, ,
then the area of the square is:
(1) 4r2
(2) r2
(3) πr2
(4) 2r2
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Answer:
(2) r2
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Answer:
When a circle is inscribed in a square, the length of each side of the square is equal to the diameter of the circle. That is, the diameter of the inscribed circle is 8 units and therefore the radius is 4 units. The area of a circle of radius r units is A=πr2 .
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