Question

Find Please explain, it’s a bit hard for me to understand

Answer 1

Isosceles triangle: It has two angles that have the same measure, i.e. the angle opposite the side of the same length

ΔXYA

∠Y=180° - (65+65) = 50°

ΔAYZ

∠Y=(180°-62°):2 = 59°

so ∠XYZ = 50°+59°=109°