Download presentation

Presentation is loading. Please wait.

Published byGabriel Owen Modified over 3 years ago

2
Get Materials!

3
01 59585756555453525150494847464544434241403938373635343332313029282726252423222120191817161514131211100908070605040302 0100 Get Materials!

4
00 595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111009080706050403020100

5
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

6
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

7
Warm up in pairs Title classwork 2.1.5 Classwork Complete textbook pg 92 # 38

8
Together Now! Turn to page 93 #43 Volunteers to read?

9
Use those theorems in reverse! #44 44A) 44B) 44C) 44D)

10
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

11
Prove these lines are parallel! (#45)

12
Hooray! If we got here before the bell, then we all get a break!

13
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

14
Answers to 47a

15
Answers continued 47b) 47c)

16
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.

17
Practice makes perfect! Complete #51 with your partner. I will have a pair share answers on the board.

18
Homework Textbook pg 97 #52 all If you want full credit: -set up an equation -show work -solve for x

Similar presentations

OK

PROVING LINES PARALLEL. CONVERSE OF … Corresponding Angles Postulate: If the pairs of corresponding angles are congruent, then the lines are parallel.

PROVING LINES PARALLEL. CONVERSE OF … Corresponding Angles Postulate: If the pairs of corresponding angles are congruent, then the lines are parallel.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on javascript events ios Ppt on teachers day in india Ppt on natural and artificial satellites distance Sixth sense technology best ppt on surface Ppt on film industry bollywood dance Ppt on plane table surveying Ppt on credit policy in an organisation Ppt on single phase and three phase dual converter y Project ppt on student information system Ppt on delegates in c sharp