1 / 16

Notes - Angles

E. F. 1. D. Notes - Angles. An angle is the amount of turn between two rays that have a common endpoint The rays are the sides of the angle The vertex is the common endpoint of the two rays. EFD. DFE. F. 1. E. F. 1. D. Notes - Angles. What We Can Write. C. CFD. 1.

barclay-cain
Download Presentation

Notes - Angles

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. E F 1 D Notes - Angles An angle is the amount of turn between two rays that have a common endpoint The rays are the sides of the angle The vertex is the common endpoint of the two rays

  2. EFD DFE F 1 E F 1 D Notes - Angles What We Can Write

  3. C CFD 1 DFE EFD DFC CFE F 2 EFC E 1 2 F D What We Can Write Notes - Angles What We Can’t Write

  4. Notes - Angles E • The measure of an angle is found by the amount of space between the two rays • We denote measures by mEFD F D

  5. Notes - Angles E F D

  6. Notes - Angles E D F

  7. Notes - Angles Classifying Angles Acute angle: 0° < mA < 90° Right angle:mA = 90° Obtuse angle: 90° < mA < 180° Straight angle:mA = 180° A A A A

  8. Notes - Angles Classify each angle as acute, right, obtuse, or straight.

  9. Notes - Angles Angle Addition Postulate If P is in the interior of RST, then mRST= mRSP + mPST

  10. Notes - Angles Find mFDC

  11. Notes - Angles mADC = 120 mADB= 85 mBDC = __________

  12. Notes - Angles Given that mLKN = 145°, find mLKM and mMKN

  13. Notes - Angles If two angles have the same measure, then they are congruent.

  14. Notes - Angles Congruent ≅ Shapes ABC≅LMN Equal = Numbers mABC = mLMN What we CAN write: mABC = 83° mABC = mLMN ABC≅LMN What we CAN’T write: ABC =83° mABC≅mLMN ABC =LMN

  15. Notes - Angles An angle bisector is a ray that divides an angle into two congruent angles

  16. Notes - Angles bisects XYZ, and mXYW = 18° Find mXYZ.

More Related