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In the image below, what is the sum of the gray angles (in degrees)?

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In the image below, what is the sum of the gray angles (in degrees)?

Sum of Angles

posted Aug 19, 2015 by anonymous

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1 Answer

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360 degrees.
The sum of the three angles of a triangle is 180 degrees.
There are 3 triangles -> 540 degrees. The three angles not grey are 180 degrees total.
The total angle of the grey angles is 540 - 180 = 360 degrees

answer Aug 23, 2015 by Jcm
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