Show that the given points are the vertices of an isosceles triangle. Use the

distance formula. (Show that two sides of the triangle are equal in length).

1.) A (-1, -6), B (2, -7), C (-2, -3)

2.) A (-9, 3), B (-4, 8), C (0, -1)

3.) A (2, -3), B (3, 4), C (-5, -2)

4.) A (-3, 0), B (-6, 7), C (1, 4)