Answer: It is because if ∠N and ∠K are congruent and are same in size and shape.
check the picture below.
so it has a base of 18x18 and a height of that much.

A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair.
Answer: 4
Step-by-step explanation:
The power of the brain