Question

(2x-2)
45
The measure of the exterior angle of the triangle is?

Answer 1

Check the picture below.

`x + 45 = 2x - 2\implies 45=x-2\implies 47=x~\hfill~\underset{ \textit{exterior angle} }{\stackrel{ 2(47)~~ - ~~2 }{\text{\LARGE 92}^o}}`