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

angles that are congruent are complementary to the same angle.
angles that are congruent are supplementary to the same angle.
all angles in a rectangle are right angles.
complementary angles are always also congruent

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

the answer is

Angles that are congruent are complementary to the same angle

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.