CPM Homework Help : INT2 Problem 6-88

Remember that if a triangle has at least two congruent sides, it is called isosceles. Decide whether each triangle formed by the points below is isosceles. Explain how you decided.

$(6,0)$ , $(0,6)$ , $(6,6)$

$(-3,7)$ , $(-5,2)$ , $(-1,2)$

$(4,1)$ , $(2,3)$ , $(9,2)$

$(1,1)$ , $(5,-3)$ , $(1,-7)$

Use the eTool below to graph the points and view the triangles.
Click the link at right for the full version of the eTool: INT2 6-88 HW eTool