Posted by **Swassy** on Thursday, January 24, 2008 at 6:44pm.

is triangle XYZ with vertices X(-3,1), Y(2.4), Z(2.-5) a scalene triangle?

- Geometry -
**Damon**, Thursday, January 24, 2008 at 7:36pm
what are the lengths of the sides?

If they are all different, it is scalene.

You can just do the squares of the lengths, no need to take the square roots.

in general:

length^2 = (X2-X1)^2 + (Y2-Y1)^2

- Geometry -
**Damon**, Thursday, January 24, 2008 at 7:59pm
for example the length from X to Y:

XY^2 = (2 - -3)^2 + (4 - 1)^2

= 5^2 + 3^2

= 25 + 9

= 34 is the square of length XY

## Answer this Question

## Related Questions

- math - The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) ...
- HELP!!!!RIGHT NOW!!!! - Which set of side lengths shows similar triangles? (1 ...
- geometry - The triangle DEF has vertices D(-1,3) E(7,1) and F(4,6). Classify the...
- pre algebra - Triangle XYZ has vertices X(- 1, 1), Y(- 3, 1), and Z( -2, 5). ...
- Math - Which set of side lengths shows similar triangles? Triangle ABC : 40, 20...
- math - Triangle XYZ with vertices X(3,-1) Y(7,-3)Z(3,-5) undergoes an ...
- Math-CHECK PLEASE - Which of the statements is ALWAYS TRUE? A-A right triangle ...
- Math - Triangle Lmn is similar to triangle xyz. Triangle LMN has a side of 5 and...
- Math - A triangle has 2 angles that measure 60 each. Which of the following best...
- planar geometry - The triangle with vertices (0, 0), (2, -5), and (7, -3) is? a...