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19 May, 14:03

A triangle with a 135° angle

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  1. 19 May, 15:45
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    The 135 external angle means its corresponding internal angle is (180-135) 45 degrees. The other internal angle of 65 plus the 45 is 110 degrees. Since the sum of degrees in the angles in a triangle is 180, the other interior angle is (180-110), or 70 degrees.
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