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In the regular octagon above, what is x?

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In the regular octagon above, what is x?  [#permalink]

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New post 15 May 2015, 02:03
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A
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D
E

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In the regular octagon above, what is x?

A. 157.5°
B. 150°
C. 145°
D. 135°
E. 120°

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Re: In the regular octagon above, what is x?  [#permalink]

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New post 15 May 2015, 05:43
Good Question. Answer is D.

Each angle in a regular octagon is 135.

The critical aspect is the bottom 4 sides and then you cut out the rest of the 4 sides.

If you carefully see, there will be two triangles and one of which=135 and divide the remaining side /2 (180-135=45; Divide 45/2=27.5)

X=135



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In the regular octagon above, what is x?

A. 157.5°
B. 150°
C. 145°
D. 135°
E. 120°

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In the regular octagon above, what is x?  [#permalink]

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New post 27 Dec 2016, 16:42
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360°/8=45°
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Re: In the regular octagon above, what is x?  [#permalink]

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Re: In the regular octagon above, what is x?   [#permalink] 05 Aug 2018, 21:55
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