Back to Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations — Problem 2 · Task Set 22
Exercises: Congruence Through Sequences of Rigid Motions
Work through each section in order. When you describe a sequence of rigid motions, name each transformation in order and give its parameters: direction and distance for a translation, the line of reflection for a reflection, and the center and angle (with direction) for a rotation. Two figures are congruent only when a sequence of rigid motions maps one exactly onto the other.
Grade 8·21 problems·~35 min·Common Core Math - Grade 8·container·8-g-a-2
Work through problems with immediate feedback
A
Recall / Warm-Up
These problems review skills you already know: performing single rigid motions and comparing measurements.
1.
Which list contains only rigid motions (transformations that keep a figure the same size and shape)?