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22 Oct 2019, 03:32
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A
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If the area of a circle inscribed in a square is 49π, what is the perimeter of the square?
(A) 56
(B) 49
(C) 14π
(D) 28
(E) 14
(A) 56
(B) 49
(C) 14π
(D) 28
(E) 14
26 Oct 2019, 08:50
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Bunuel
Since area is 49π, the radius is 7, and the diameter is 14.
Since the diameter of the circle = a side of square, the perimeter of the square is 14 x 4 = 56.
Answer: A
General Discussion
22 Oct 2019, 03:43
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\(π*r^{2}\)=49π
\(r^{2}\)= 49
r=7
--> the side of the square will be 2r=14
The perimeter of the square is equal to 4*14=56
The answer is A.
\(r^{2}\)= 49
r=7
--> the side of the square will be 2r=14
The perimeter of the square is equal to 4*14=56
The answer is A.
