If ∠LKJ and ∠GHI are complementary angles, what is the angle measure of ∠GHI? LJK is 34°

A. 66°

B. 56°

C. 124°

D. 146°

If ∠LKJ and ∠GHI are complementary angles, then the sum of their measures is 90°. Since ∠LJK measures 34°, then ∠GHI measures 90° - 34° = 56°.

The answer is B. 56°.