Module 2 Lesson 4 Problem Set

You may use your paper copy in your book to actually perfomr these transformations.

In the picture below, ∠DEF=56°, ∠ABC=114°, AB=12.6 units, JK= 5.32 units, point E is on line L, and point I is off of line L.  
Let there be a reflection across line L.  
Reflect and label each of the figures, and answer the questions that follow.

1

What is the measurement of the reflection of angle DEF?

1

What is the length of the reflection of line JK?

1

What is the measurement of angle ACB?

1

What is the length of side AB?

1

Which point(s) or figures did not move during the reflection

1

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'

You may use your paper copy in your book to actually perfomr these transformations.

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'

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'