The Vertices of a Triangle Are Given

Multiple Choice

The vertices of a triangle are given. Use the distance formula to find what kind of triangle each is. A sketch of the graph might be helpful. Note: An isosceles triangle has two equal sides. An equilateral triangle has three equal sides. A right triangle satisfies the Pythagorean Theorem.
(6, 7) , (4, 4) , (6, 1)

A) equilateral isosceles right
B) isosceles
C) right, not isosceles
D) equilateral
E) equilateral right