130 likes | 251 Vues
This lesson explores the Corresponding Angles Postulate and its implications in geometry. Students will learn to prove the congruence of alternate interior angles and how to apply the Same-Side Interior Angles Theorem. Through drawing transversal lines that intersect parallel lines, learners will discover the relationships between these angles, including how corresponding angles and same-side interior angles form specific sums. A bonus problem will challenge students to solve for missing angles, reinforcing their understanding. Homework will be assigned to practice these concepts.
E N D
HW Solutions • 11. JCD and EAB • 13. CL, JE, FA, GB • 21. Corresponding, Corresponding, Alternate Interior Angles, • 22. Corresponding, Same-side Interior, Corresponding • 23. Same-side interior, Corresponding, Alternate Interior*** • 25. 2 A.I.A • 26. 4 Corresponding Angles • 27. 2 A.E.A • 28. 4 Vertical Angles
Properties of Parallel Lines We will learn about the corresponding angles postulate to help us prove other theorems
Now we can prove other theorems • Let’s prove alternate interior angles are congruent.
Start off by drawing a transversal line intersecting two other line.
Let’s figure out why same-side interior angles theorem is true. • Prove <4+<5=180
Given line a and b are parallel • Prove <1 and <8 are Supplementary
Alternate Exterior Angles 5 With out doing a statement reason proof, talk to your group and describe how you might prove this true. It should only be a couple of steps and use angle 5 to help you out with this.
Bonus Problem • Solve for x and y. • Don’t do a proof
Homework • Page 152 # 1-4, 9, 10, 22, 15, 16, 26