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23 Oct 2018, 13:06
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
90% (00:20) correct
10%
(00:33)
wrong
based on 134
sessions
History
Date
Time
Result
Not Attempted Yet
If the area of a circle is \(64\pi\), then the diameter of the circle is
(A) \(8\)
(B) \(16\)
(C) \(32\)
(D) \(8\pi\)
(E) \(16\pi\)
(A) \(8\)
(B) \(16\)
(C) \(32\)
(D) \(8\pi\)
(E) \(16\pi\)
23 Oct 2018, 13:33
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pushpitkc
Area = D^2/4 * pi
64* pi = D^2/4 * pi
4 * 64 = D^2
256 = D^2
2^8 = D^2
2^4 = D
16 = D
Answer choice B
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