How do you write a Pythagorean Theorem 5 sentence paragraph?

Question

In this how do i explain this question? : Reardon is 5 killometers due north of the air port, and Belleville is due east of the airport. If the distance between Reardon and Belleville is 13 killometers, How far is Bellevill from the airport?

Answer 1

12 km

due north is 5 km

the hypotenuse = 13 km

due east is the other leg of a right triangle

d^2 = 13^2 -5^2 = 169-25 = 144

d = sqr144 = 12