1 / 9

Warm Up

Week 2. Warm Up. 08.25.11. Circle the congruent segments and congruent angles:. 2). 1). 17) ( -4, 3 ). 4) ( 1, 3 ). Homework. 18) ( 1, 2 ). 5) ( 5, -7 ). 19) ( 4, 6.5 ). 6) ( 3.5, 2 ). 20) ( -5, .5 ). 21) ( -3, 3 ). 22) ( 4 , -7 ).

yosef
Download Presentation

Warm Up

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Week 2 Warm Up 08.25.11 Circle the congruent segments and congruent angles: 2) 1)

  2. 17) ( -4, 3 ) 4) ( 1, 3 ) Homework 18) ( 1, 2 ) 5) ( 5, -7 ) 19) ( 4, 6.5 ) 6) ( 3.5, 2 ) 20) ( -5, .5 ) 21) ( -3, 3 ) 22) ( 4 , -7 ) 23) ( -0.625 , 3.5 ) 24) ( -3 , 1.5 )

  3. A segment, line, ray, or plane that intersects a segment at the midpoint. Segment Bisector • Midpoint Ex 1 C • M A B • D Bisector

  4. A ray that divides an angle in half and creates adjacent angles that are congruent Angle Bisector A • CD Bisects ∠ ACB Ex 2 • D C m∠ ACD = m ∠ DCB • B

  5. • • Find missing Angles R P S 55º Ex 3 QR Bisects ∠ PQS Q m∠PQR = m∠PQS m∠PQR = m∠RQS • 2 55º = m∠RQS 55º = m∠PQS 2 (2) 55º = m∠PQS 110º = m∠PQS

  6. Find Angle Bisector S • • R Ex 4 • Q P 70º m∡PQR = 70º = 35º 2 QS bisects ∡PQR

  7. O • Ex 5 ( 5x – 46 ) P Using Algebra ( 2x+ 5 ) • R Q OQ Bisects ∠ POR m∡POQ = m∡QOR 5x – 46 =2x + 5 • 5x - 2x- 46 = 5 3x – 46 = 5 3x = 5 + 46 3x = 51 x = 17

  8. Using Algebra x = 17 m∡POQ = 5x – 46 m∡QOR = 2x + 5 = 5( 17 ) – 46 =2( 17) + 5 = 85 – 46 =34 + 5 m∡POQ = 39º m∡QOR =39º

  9. O • R Review What is an angle bisector? P • DO 1: What is the m∡POQ? Q OQ Bisects ∠ POR • ( 3x + 16 ) ( 7x - 8 ) Assignment Textbook page 39, 34 – 54 all except # 43

More Related