Question

Find the distance between the points (13, 20) and (18, 8).
13
7
11

Answer 1

Answer: 13

Explanation:

See attached graph.

A third point (18,20) may be added to the two given points to form a right triangle with sides 5 and 12. The distance, x, between the original two points is given by x^2 = 5^2 + 12^2

x^2 = 25 + 144

X^2 = 169

x = 13