Questions 12-13: Simplify. Write your answer in simplified radical form.

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

How are sas and sss used to show that two triangles are congruent?