Suppose A is (3, 1, -2), B is (-6, 7, 13)

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Three-Dimensional Geometry · Introduction to Three-Dimensional Geometry

Problem

Suppose A is (3, 1, -2), B is (-6, 7, 13), and C is (5, 9, -4). Show that triangle ABC is right angled.