1 / 12

Arcs and Central Angles

Geometry Mr. Bower BowerPower.net. Arcs and Central Angles. Central Angles. The vertex is the center of the circle The sides are radii of the circle. Central Angles.  XCY is a central angle YOU  Name two more central angles. Central Angles.

Download Presentation

Arcs and Central 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. Geometry Mr. Bower BowerPower.net Arcs and Central Angles

  2. Central Angles • The vertex is the center of the circle • The sides are radii of the circle

  3. Central Angles • XCYis a central angle • YOU Name two more central angles

  4. Central Angles • What is the sum of the red, blue, and green central s?

  5. Arcs • The measure of = measure of its an arc central angle • mXCY = 80° • m XY = 80°

  6. Arcs • The measure of = measure of its an arc central angle • mZCY = ???° • m ZY = ???°

  7. Arcs • The measure of = measure of its an arc central angle • mZCX = ???° • m ZX = ???°

  8. Arcs • What is the sum of the red, blue, and green arcs?

  9. Minor Arcs • Minor arcs are < 180° • When you see exactly two letters, this is a minor arc • m ZX = 160°

  10. Major Arcs • Major arcs are > 180° • When you see three letters, follow the path of the letters… it may be a major arc • m ZYX = 200°

  11. Semicircle • A semicircle is an arc = 180° • Do you see that the central angles are also 180°? • m AMB = 180° • m ANB = 180°

  12. BowerPower.net

More Related