how do you find the slope of a triangle?

Use slope to determine a triangle with points (3, 2) (8, 5) and (0, 10) is a right triangle or not. Explaintion would be nice :s thanks

Answer #1

On your cooridnate plane graph those three points. If the triangle you plot has a 90degree angle then it is a right triangle.

Answer #2

I know that but, hmm it said to use the formula, I don’t know why I dint think of just plotting them.

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