Question

Prove whether or not, the following set of coordinates form a right triangle. Complete your work in the space provided or upload a file that can display math symbols if your work requires it. A = (2, 1), B = (7, 1), C = (2, 4)

Answer 1

This is a right triangle.

AC forms a line parallel with the Y axis.

AB forms a line parallel with the X axis.

The intersection of AC with AB must therefore be perpendicular.