college algebra
posted by john .
an isosceles triangle has at least two sides of equal length. Determine whether the triangle with vertices (0,0), (3,4),(7,1) is isosceles.

well the distance between the first and second point is 5.
the distance between the first and the last is sqrt50
the distance between the second and the last is sqrt(16+9)=5
so what do you think>