Question

In a triangle , an exterior angle at a vertex is 95° and it's one of the interior opposite angles is 55°. find all the angles of the triangle. ​

Answer 1

In a ∆

/_1= 55°

/_2=40°

/_3=85°

:• I named all the three angles as 1,2 & 3 respectively...

I used exterior angle property to find angle 2

And angle 3 by angle sum property of a∆