Question

I'd appreciate it if anyone could help me!

Find the value of gamma γ.

Choices:

30 degrees


37.5 degrees


52.5 degrees


105 degrees

Answer 1

let's recall that corresponding angles are equal, thus 105° twins, also let's recall that a flat-line has 180°.

since the two sides stemming from Ɣ are twins, the angles they make at the base are also twins, bearing in mind that a triangle has a sum of all interior angles of 180°.