Question

A triangle in the coordinate plane has vertices ????(0,10), ????(−8,8), and ????(−3,5). Is it a right triangle? If so, at which

vertex is the right angle? (Hint: Plot the points, and draw the triangle on a coordinate plane to help you determine
which vertex is the best candidate for the right angle.)

Answer 1

It is a right triangle, the right angle is at the point (-3, 5)

Explanation:

The first step is to locate the points of the vertices in a plane, in this case they are (0.10), (-8.8) and (-3.5). The desmostration of this is shown in the attached image.

As we can see it is formed a right triangle (the figure outlined in red), and the rigth angle is the one at the point (-3,5).