What is the measurement of the reflection of angle DEF?
What is the length of the reflection of line JK?
What is the measurement of angle ACB?
What is the length of side AB?
Which point(s) or figures did not move during the reflection
Connect Point I and I'.
Name the point of intersection of the segment with the line of reflection as point Q.
What do you know about the length of the segments IQ and QI'