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What is the circumference of the circle in the figure above?

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V
Joined: 02 Sep 2009
Posts: 43377
What is the circumference of the circle in the figure above? [#permalink]

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New post 17 Dec 2017, 00:58
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A
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  15% (low)

Question Stats:

94% (00:18) correct 6% (00:07) wrong based on 33 sessions

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Image
What is the circumference of the circle in the figure above?

(A) 5π
(B) 10π
(C) 25π/2
(D) 20π
(E) 25π

[Reveal] Spoiler:
Attachment:
2017-12-17_1255_001.png
2017-12-17_1255_001.png [ 17.37 KiB | Viewed 468 times ]
[Reveal] Spoiler: OA

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Re: What is the circumference of the circle in the figure above? [#permalink]

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New post 17 Dec 2017, 04:27
Bunuel wrote:
Image
What is the circumference of the circle in the figure above?

(A) 5π
(B) 10π
(C) 25π/2
(D) 20π
(E) 25π

[Reveal] Spoiler:
Attachment:
2017-12-17_1255_001.png


Radius of teh circle = 5

circumference = 2πr = 2*π*5 = 10π

ANswer: Option B
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What is the circumference of the circle in the figure above? [#permalink]

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New post 17 Dec 2017, 10:25
Bunuel wrote:
Image
What is the circumference of the circle in the figure above?

(A) 5π
(B) 10π
(C) 25π/2
(D) 20π
(E) 25π

[Reveal] Spoiler:
Attachment:
2017-12-17_1255_001.png


\(Circumference = Diameter*Pi=2*Radius*Pi\)

The figure above has a \(Diameter = 10\), a \(Radius=5\) and a \(Circumference=10π\).

(B) is the answer.
What is the circumference of the circle in the figure above?   [#permalink] 17 Dec 2017, 10:25
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What is the circumference of the circle in the figure above?

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