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in the figure below, four semicircle are drawn, each one is centered a

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Intern
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in the figure below, four semicircle are drawn, each one is centered a  [#permalink]

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New post 08 Dec 2015, 06:17
1
00:00
A
B
C
D
E

Difficulty:

  85% (hard)

Question Stats:

50% (02:05) correct 50% (01:32) wrong based on 28 sessions

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in the figure below, four semicircle are drawn, each one is centered at the midpoint of one of the sides of the square abcd....

please see the figure below

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Re: in the figure below, four semicircle are drawn, each one is centered a  [#permalink]

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New post 08 Dec 2015, 12:16
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anik19890 wrote:
in the figure below, four semicircle are drawn, each one is centered at the midpoint of one of the sides of the square abcd....

please see the figure below




The answer should be E

16 ( area of square) - 4 pi ( area of a full circle) should give me area of 2 of the 4 un-shared regions.

2*(16-4pi) = 32-8pi ; this is the area of all the 4 un shaded regions.

Now subtract this from 16( area of the square) to get the area of shaded regions.

16-(32-8pi) = -16+8pi

Answer : E




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Re: in the figure below, four semicircle are drawn, each one is centered a  [#permalink]

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New post 08 Dec 2015, 12:21
anik19890 wrote:
in the figure below, four semicircle are drawn, each one is centered at the midpoint of one of the sides of the square abcd....

please see the figure below


Locking the thread. Repost the question per posting guidelines (link in my signatures). Make sure to write the complete question and mention all the options.
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Re: in the figure below, four semicircle are drawn, each one is centered a  [#permalink]

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New post 03 Jan 2018, 05:41
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Re: in the figure below, four semicircle are drawn, each one is centered a &nbs [#permalink] 03 Jan 2018, 05:41
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