8,5 2,-7 -1,-4 Which of the following correctly classifies the triangle?

Question

I'm trying to figure out out how to figure out what triangle this is

 

Answer 1

Those aren't the lengths of the sides, they are ordered pairs showing the coordinates of the vertices on the coordinate plane. Graph them and connect them to form a triangle. (8,5), (2, -7) and (-1, -4)

 

When you have the triangle drawn, you'll be able to classify it.

Answer 2

pt A (8,5)

pr B (2,-7)

pt C (-1,-4)

 

Using the distance formula

 

Length of A to B = 13.4 units

Length of B to C = 4.24  units

Length of C to A = 12.73 units

 

Using the slope formula

The slopes of BC and AC are opposite reciprocals, so they form a right angle

 

The triangle is a right scalene