one angle of a triangle is 50degree and the other two are in the ratio of 6:7 find the angles
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50+6x+7x = 180° ( angle sum property)
50+13x = 180°
13x= 180 - 50
13x= 130°
x = 130/13
x = 10°
6x = 60°
7x = 70 °
the angles of triangle are 50 °, 60° and 70°
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