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In the figure, 3 unit squares are placed side by side. Find the sum of angles a+b+c = ??

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In the following figure, 3 unit squares are placed side by side. Find the sum of angles a+b+c = ??.

enter image description here

posted Aug 16, 2015 by anonymous

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1 Answer

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90 degrees.
tan^-1(1) + tan^-1(1/2) + tan^-1(1/3) = 45 + 27 + 18 = 90

answer Aug 23, 2015 by Jcm



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