Question

An exterior angle of a triangle is ${130}^o$ and one of interior opposite angles is ${45}^o$, the other two angles of the triangle.

Answer 1

R.E.F image

$z={45}^{\circ }$

$x=180-130=50$

$x+y+z=180$

$y=180-50-{45}^{\circ }$

$y={85}^{\circ }$ $x={50}^{\circ }$