Question

Determine if triangle XYZ with coordinates X(1, 1), Y(5, 6), and Z(6, 2) is a right triangle. Use evidence to support your claim.

Answer 1

one approach
to have a right angle triangle then 2 sides must be perpendicular. the product of the slopes must be -1. Find the lengths. If the square of the longest side is the sum of the squares of the legs. (pythagorean theorem)

Answer 2

did you plot the points? sketch the triangle