Other · Multi-part · ICSE · Mathematics · Coordinate Geometry · Distance between points
Problem
Determine whether triangle ABC is scalene, isosceles, or equilateral:
(1) <b>a</b> A is (2, 1, -3), B is (-5, 5, 3), and C is (-2, 3, 6)
(2) <b>b</b> A is (3, -1, 5), B is (-1, -4, 0), and C is (2, 7, -3)