# Get Materials! 01 59585756555453525150494847464544434241403938373635343332313029282726252423222120191817161514131211100908070605040302 0100 Get Materials!

## Presentation on theme: "Get Materials! 01 59585756555453525150494847464544434241403938373635343332313029282726252423222120191817161514131211100908070605040302 0100 Get Materials!"— Presentation transcript:

Get Materials!

01 59585756555453525150494847464544434241403938373635343332313029282726252423222120191817161514131211100908070605040302 0100 Get Materials!

00 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100

Homework Answers…Questions? 1. 2 – vertical, 5 – corresponding, 6 – alt. ext. 2. 6 – vertical, 4 – corresponding, 2 - alt. int. 3. 2 – vertical, 4 – corresponding 4. 6 – vertical, 11 & 4 – corresponding, 9 & 2 – alt. int., 13 & 15 – corresponding to 2 & 11 5. 1 = 45 o (alt. int.)2 = 135 o (linear pair) 6. 1 = 65 o (same-side ext.)2 = 115 o (corresponding) 7. 1 = 95 o (alt. int.)2 = 130 o (same-side int.) 8. a) measure of angle 1 = 105 o b) same-side interior

Why does it matter? Light technology and Mirror Reflection What are we learning today? Proving lines are parallel (the converses of the angle theorems) Section 2.1.5

Warm up in pairs Title classwork 2.1.5 Classwork Complete textbook pg 92 # 38

Together Now! Turn to page 93 #43 Volunteers to read?

Use those theorems in reverse! #44 44A) 44B) 44C) 44D)

Converses and Parallel Notation Converse – switch the If and then in a theorem The notation for parallel lines are 2 slashes between the lines that are parallel Example: m // n would read m is parallel to n. m n

Prove these lines are parallel! (#45)

Hooray! If we got here before the bell, then we all get a break!

Somebodys Watching Me part 2 Read # 46 together for set up Complete #47 with your partner using the angle I assign you Copy the diagram onto your classwork when filling in angles

Putting it all together. #49) Calculate the measures of x, y, and z. Justify each answer with the name of a geometric relationship from your toolkit.

Practice makes perfect! Complete #51 with your partner. I will have a pair share answers on the board.

Homework Textbook pg 97 #52 all If you want full credit: -set up an equation -show work -solve for x