1 / 17

Do Now 3/19/12

Do Now 3/19/12. Copy HW in your planner. Text p. 324, #1-23 all, 28, 29 Quiz sections 8.1-8.3 Wednesday Be ready to copy POTW #7. Objective. SWBAT identify parallel, perpendicular, and skew lines, and angles formed by a transversal. Section 8.3 “Line and Angle Relationships”.

lane
Download Presentation

Do Now 3/19/12

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. Do Now 3/19/12 • Copy HW in your planner. • Text p. 324, #1-23 all, 28, 29 • Quiz sections 8.1-8.3 Wednesday • Be ready to copy POTW #7

  2. Objective • SWBAT identify parallel, perpendicular, and skew lines, and angles formed by a transversal

  3. Section 8.3 “Line and Angle Relationships”

  4. Intersecting Lines The point where two lines cross or intersect (intersection). N R S T M intersects line at point S

  5. Parallel Lines Two lines that are in the same plane and do not intersect. T N R M is parallel to

  6. Perpendicular Lines Two lines that intersect and the angles that are formed measure 90°. R N M T is perpendicular to

  7. Skew Lines lines that do not intersect and they are not parallel. They lie in different planes. N R M T

  8. WX and XU WX and UV WX and ZY WX XU WX || ZY WX and UV are skew. Tell whether the lines appear parallel, perpendicular, or skew. The lines are in the same plane and do not intersect. The lines are in different planes and do not intersect. The lines appear to intersect to form right angles.

  9. Adjacent Angles Two angles that share a side and vertex but DO NOT overlap 3 4 2 1

  10. Vertical Angles Opposite congruent angles formed by two intersecting lines. 1 2 3 4

  11. Identify the adjacent angles and the vertical angles in the diagram below. 1 3 2 4 Adjacent angles: Vertical angles: 1 & 2 1 & 4 1 & 3 2 & 3 2 & 4 3 & 4

  12. Transversal a line that intersects two lines. A T N R M B

  13. Angle Relationships Angles that are in matching places Angles that are inside of the parallel lines Angles that are outside of the parallel lines

  14. Line e line d. Identify the corresponding, alternate interior, and alternate exterior angles. d Corresponding 1 & 5; 2 & 6; 3 & 7; 4 & 8 y e 6 5 Alternate Interior 2 & 7; 4 & 5; 8 7 Alternate Exterior 1 & 8; 3 & 6; 2 1 4 3

  15. Line n line p. Find the measure of the missing angles. Angles 2, 4, and 6 are 130°. Angles 1, 3, and 5 are 50°.

  16. Line xline y. Find the measure of the missing angles. Angles 2, 5, and 6 are 70°. Angles 1, 3, 4,and 7 are 110°.

  17. Homework NJASK7 Prep • Text p. 324, #1-23 all, 28, 29

More Related