Question

and exterior angle of a triangle is 115 degree and one of the interior opposite angle is 60 degree find the one other interior opposite angle

Answer 1

exterior angle = 115
interior angle = 60
we know that sum of two interior angles = exterior angle
let the other interior angle be x
so
x + 60 = 115
x = 115-60
x= 55

Answer 2

Let the interior angle be x
115=60+x...... remote interior angles
x=55°
So the another opposite interior angle is 55°
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