Which reason justifies the statement that klc is complementary to kjc?

Angles that are congruent are complementary to the same angle

Step-by-step explanation:

see that attached figure to better understand the problem

we know that

Two angles are complementary if their sum is equal to

-----> equation A

so

-----> equation B

so

-----> equation C

Substitute equation A in equation C

So

That means------> angles ∠KLC and ∠KJC------> are complementary angles

therefore

Angles that are congruent are complementary to the same angle