## anonymous 4 years ago Is triangle TVS scalene, isosceles, or equilateral? The vertices are T(1, 1), V(9, 2), and S(5, 8).

1. anonymous

Measure the distance between the points and you will be able to make this determination. Are you familiar with the distance formula?

2. anonymous

Not really.

3. anonymous

$d = \sqrt{(x _{2} - x _{1})^{2} + (y _{2} - y _{1})^{2}}$

4. anonymous

Oh, so I just plug in the numbers where they go?

5. anonymous

Yeah. Measure the distance from T to V. Then measure the distance from V to S. Finally, measure the distance from S to T. If you get three different distances, for example, you would say Scalene.

6. anonymous

Because each distance corresponds to the measure of one side of the triangle.