Question

Pls Answer and Explain

Answer 1

see explanation

Explanation:

given the triangles are similar , that is

Δ GHI ≅ Δ YXZ

Then corresponding angles are congruent.

∠ X = ∠ H = 20°

∠ Y = ∠ G = 90°

note that ∠ I = 180° - (90 + 20)° = 180° - 110° = 70° , then

∠ Z = ∠ I = 70°