Solve the problem.
-Decide whether or not the points are the vertices of a right triangle. (-2, 4), (9, -7), (11, -5)
A) No
B) Yes

Question

Quizplus · Accepted Answer

The points form a right triangle because the distances between the points satisfy the Pythagorean theorem: the distance between (-2, 4) and (9, -7) is 15, between (9, -7) and (11, -5) is 2√2, and between (-2, 4) and (11, -5) is 13. The squares of the two shorter sides (2√2)^2 + 13^2 equal the square of the longest side 15^2.

Solve the Problem. -Decide Whether or Not the Points Are the Vertices of the Vertices