2. Let P, Q, and R be three points in the plane, and let P', Q', and R', respectively, be their images under an isometry
Posted: Mon Jul 11, 2022 12:03 pm
2. Let P, Q, and R be three points in the plane, and let P', Q', and R', respectively, be their images under an isometry T. Show that the points P, Q, and R are collinear, with Q between P and R, if and only if the points P', Q', and R' are collinear, with Q' between P' and R'.