9514 1404 393
Answer:
50°
Step-by-step explanation:
In a triangle, angles opposite congruent sides are congruent.
The hash marks indicate angle IGH is opposite a side congruent to the side opposite angle GIH. The latter is 50°, so ∠IGH = 50°.
__
Another way to say this is that base angles of an isosceles triangle are congruent.
