1. Bell work (Turn in when finished): Perform the transformation indicated
Reflection across y=x of P(3,5), Q(5,2), and R(-1,12)
Rotation by 180 around the origin of the same P, Q, and R

2. Tests….

3. 9.5: Congruence Transformations

4. Which angle pairs are equal?
Which side lengths are equal?

5. Two figures are congruent if and only if there is a sequence of rigid motions mapping one to the other
Any sequence of rigid motions is called a congruence transformation

6. Which figures are congruent?

7. Which figures are congruent? How do you know?

8. These figures are congruent…what is the congruence transformation to take the black shape to the blue shape?

9. Identify a congruence transformation from NAV to BYC

10. Prove triangle 1 is congruent to triangle 3

11. Section 9.5, pages 582- 583: 6, 7, 9, 10, 16 Honors: Add 21, 23a
Homework:
Section 9.5, pages : 6, 7, 9, 10, 16
Honors: Add 21, 23a

12. 16. Determine if the two figures are congruent
16. Determine if the two figures are congruent. If so, determine a transformation mapping one to the other. If not, explain.

13. 23. The figure to the right is an artwork called a tessellation
23. The figure to the right is an artwork called a tessellation. What types of congruence transformations can be seen in the picture?