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A circle has radius 3.5. What is its area?
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19 Sep 2018, 17:42
19 Sep 2018, 17:42
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Question Stats:
83% (00:36) correct
16% (00:35) wrong based on 37 sessions
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A circle has radius 3.5. What is its area?
(A) \(\frac{7}{2}\pi\)
(B) \(9.5 \pi\)
(C) \(10.5 \pi\)
(D) \(\frac{49}{4}\pi\)
(E) \(\frac{49}{2}\pi\)
(A) \(\frac{7}{2}\pi\)
(B) \(9.5 \pi\)
(C) \(10.5 \pi\)
(D) \(\frac{49}{4}\pi\)
(E) \(\frac{49}{2}\pi\)
Re: A circle has radius 3.5. What is its area?
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25 Sep 2018, 21:19
25 Sep 2018, 21:19
The radius of the circle is \(\frac{35}{10}\)
Area = 35^2/10^2 = \(\frac{1225\pi}{100}\)
reducing it to lowest fraction = \(\frac{49 \pi}{4}\)
Area = 35^2/10^2 = \(\frac{1225\pi}{100}\)
reducing it to lowest fraction = \(\frac{49 \pi}{4}\)
gmatclubot
Re: A circle has radius 3.5. What is its area? [#permalink]
25 Sep 2018, 21:19
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