1 / 15

Chapter 1.4

Chapter 1.4. Angle Measure. Vocabulary. Ray – part of a line that has one endpoint and extends indefinitely in one direction. Opposite Rays – two rays that share a common endpoint and are collinear

billied
Download Presentation

Chapter 1.4

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. Chapter 1.4 Angle Measure

  2. Vocabulary • Ray – part of a line that has one endpoint and extends indefinitely in one direction. • Opposite Rays – two rays that share a common endpoint and are collinear • Angle – formed by two noncollinear rays (sides) that share a common endpoint (vertex). There is an interior of each angle and an exterior of each angle.

  3. Answer: Example 1 Angles and Their Parts A. Name all angles that have B as a vertex.

  4. Answer: Example 1 Angles and Their Parts B.Name the sides of5.

  5. C. Example 1 Angles and Their Parts

  6. A. B. C. D. Example 1a

  7. A. B. C. D.none of these Example 1b

  8. A. B. C. D. Example 1c Which of the following is another name for 3?

  9. Concept

  10. Measure and Classify Angles A. Measure TYV and classify it as right, acute, or obtuse. Answer:mTYV = 90, so TYV is a right angle.

  11. Measure and Classify Angles Answer:180 > mWYT > 90, so WYT is an obtuse angle.

  12. Measure and Classify Angles

  13. Protractor Time! • Measure an angle • Create an angle

  14. Measure and Classify Angles INTERIOR DESIGN Wall stickers of standard shapes are often used to provide a stimulating environment for a young child’s room. A five-pointed star sticker is shown with vertices labeled. Find mGBH and mHCI if GBH  HCI, mGBH = 2x + 5, and mHCI =3x – 10.

  15. Find mBHC and mDJE if BHC  DJE, mBHC = 4x + 5, and mDJE = 3x + 30. A.mBHC = 105, mDJE = 105 B.mBHC = 35, mDJE = 35 C.mBHC = 35, mDJE = 105 D.mBHC = 105, mDJE = 35

More Related