Move the triangles by dragging them or point A. Rotate the triangles by moving points B and E. Use the toolbar to measure the line segments, angles or area.
To prove triangle ABC is congruent to triangle DEF, we can do a series of rigid motions that maps DEF onto ABC. We first start by completing a translation. Which option describes the correct translation?
Why do we have to map D onto A and not E onto B or F onto C?
What rigid motion should be completed following the translation?
Why does mapping DE onto AC not prove triangle congruence?
What is the final transformation that maps DEF onto ABC and proves the two triangles are congruent?
Is there another sequence of rigid motions that would show DEF is congruent to ABC?