In a triangle, an exterior angle at a vertex is 95° and its one of the interior opposite angle is 55°, then the measure of the other interior angle is
We know that,
In a triangle an exterior angle is equal to sum of two interior opposite angle.
Let, the required interior opposite angle be x.
x + 55o = 95o
x = 95o – 55o
= 40o
Thus, other interior angle is 40o.