Use the distance formula to define a triangle with vertices (-2,5) , (2,8) , and (6,5) .
A) isosceles triangle
B) right triangle
C) equilateral triangle

Question

Quizplus · Accepted Answer

The distances between the points are:  AB = √((2 - (-2))^2 + (8 - 5)^2) = √(4^2 + 3^2) = √(16 + 9) = √25 = 5  BC = √((6 - 2)^2 + (5 - 8)^2) = √(4^2 + (-3)^2) = √(16 + 9) = √25 = 5  CA = √((6 - (-2))^2 + (5 - 5)^2) = √(8^2 + 0^2) = √64 = 8  Since AB = BC, the triangle is isosceles.

Use the Distance Formula to Define a Triangle with Vertices