1. What Rigid Transformation will take Pentagon PTSRQ to Pentagon VZYXW?
Warm-up
What Rigid Transformation will take Pentagon PTSRQ to Pentagon VZYXW?
Angle P corresponds to Angle ____
Angle Q corresponds to Angle ____
Angle R corresponds to Angle ____
Angle S corresponds to Angle ____
Angle T corresponds to Angle ____
Line Segment PQ corresponds to Line Segment _____
Line Segment PT corresponds to Line Segment _____
Line Segment RS corresponds to Line Segment _____
Line Segment ST corresponds to Line Segment _____
Line Segment QR corresponds to Line Segment _____

2. Introduction
What about a change or orientation of the line of reflection? How does this change your thinking?

3. Page 63 Remember: 90 degrees = 1/4 turn of your tracing paper
180 degrees = 2/4 turns of your tracing paper
270 degrees = 3/4 turns of your tracing paper

4. Pages 64-65 Trace Line Segment CD on your copy paper.
On this question, you will be creating three new line segments.
Each new line segment will be a 180 degree rotation of the original line segment CD, but will use a different point as the center of rotation.

5. Page 64
Focus on Question 1
Trace Line Segment CD with labels and also Point E.
Perform the rotation and label the image of C as A
When rotating the figure, which points remain unchanged (do not move)?
Which points change locations? A

6. Page 64 Focus on Question 2 Use the original Line Segment CD. B
Perform the rotation and label the image of C as B and D as F.
When rotating the figure, which points remain unchanged (do not move)?
Which points change locations? B F A

7. Pages 64-65 Focus on Question 3
Perform the rotation using Point G as the center of rotation, then locate the image of C
When rotating the figure, which points remain unchanged (do not move)?
Which points change locations?

8. Page 65 Choose one line to be the pre-image. Trace that line.
Experiment with various points as your center of rotation. It may take several attempts before you find it. If it doesn’t work, try again.
Try to find a center that will bring you to the image after a rotation.

9. Page 66 Trace Triangle ABC
We will use ROTATION with the center of rotation shown (Star)

10. Page 68

11. Page 69

12. Page 69
Write a description of the transformation used to Map ABCD to A’B’C’D’.

13. Page 70
Write a description of the transformation used to Map ABCD to A’B’C’D’.

14. y
Page 70 x