The sum of the angles in a triangle is 180o
x - 20o + 4x - 15o + 2x + 5o = 180o
7x - 30 = 180;
7x = 210
x = 30o
The angles are:
30o - 20o = 10o
4 x 30o + 15o = 75o
105o - 10o = 95o
johnmulu answered the question on June 9, 2017 at 08:14
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