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

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Math Expert
Joined: 02 Sep 2009
Posts: 53020
What is the circumference of the circle in the figure above?  [#permalink]

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17 Dec 2017, 00:58
00:00

Difficulty:

5% (low)

Question Stats:

94% (00:24) correct 6% (00:11) wrong based on 50 sessions

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

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

Attachment:

2017-12-17_1255_001.png [ 17.37 KiB | Viewed 881 times ]

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

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17 Dec 2017, 04:27
Bunuel wrote:

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

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

Attachment:
2017-12-17_1255_001.png

Radius of teh circle = 5

circumference = 2πr = 2*π*5 = 10π

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

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17 Dec 2017, 10:25
Bunuel wrote:

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

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

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 $$Circumference=10π$$.

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