Given the coordinates of three points that form a triangle, what formula must be used to determine if the triangle is equilateral?
A)midpoint
B)equation of a line
C)slope
D)distance

Question

Quizplus · Accepted Answer

To determine if a triangle is equilateral, we need to check if all three sides are equal in length. The formula for finding the distance between two points is used for this, which is the option D. We can use this formula to find the length of all three sides of the triangle and compare them. If all three sides are equal, the triangle is equilateral.

Given the Coordinates of Three Points That Form a Triangle