1 / 20

CHAPTER 10.1

CHAPTER 10.1. CIRCLES AND CIRCUMFERENCE. Circles. A circle is the set of all points in plane equidistant from a given point called the center of the circle. Concept. Example 1. Identify Segments in a Circle. A. Name the circle and identify a radius. Example 1.

roman
Download Presentation

CHAPTER 10.1

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 10.1 CIRCLES AND CIRCUMFERENCE

  2. Circles • A circle is the set of all points in plane equidistant from a given point called the center of the circle

  3. Concept

  4. Example 1 Identify Segments in a Circle A. Name the circle and identify a radius.

  5. Example 1 Identify Segments in a Circle B. Identify a chord and a diameter of the circle.

  6. A. B. C. D. Example 1 A. Name the circle and identify a radius.

  7. A. B. C. D. Example 1 B. Which segment is not a chord?

  8. Concept

  9. If RT = 21 cm, what is the length of QV? RT is a diameter and QV is a radius. Example 2 Find Radius and Diameter Answer:QV = 10.5 cm

  10. If QS = 26 cm, what is the length of RV? Example 2 A. 12 cm B. 13 cm C. 16 cm D. 26 cm

  11. Concept

  12. Example 3 Find Measures in Intersecting Circles

  13. Example 3 A. 3 in. B. 5 in. C. 7 in. D. 9 in.

  14. Concept

  15. Example 4 Find Circumference CROP CIRCLES A series of crop circles was discovered in Alberta, Canada, on September 4, 1999. The largest of the three circles had a radius of 30 feet. Find its circumference. Answer: The circumference of the crop circle is 60 feet or about 188.50 feet.

  16. Example 4 The Unisphere is a giant steel globe that sits in Flushing Meadows-Corona Park in Queens, New York. It has a diameter of 120 feet. Find its circumference. A. 377.0 feet B. 392.5 feet C. 408.3 feet D. 422.1 feet

  17. Example 5 Find Diameter and Radius Find the diameter and the radius of a circleto the nearest hundredth if the circumference of the circle is 65.4 feet.

  18. Example 5 Find the radius of a circle to the nearest hundredth if its circumference is 16.8 meters. A. 8.4 m B. 5.35 m C. 2.67 m D. 16.8 m

  19. Example 6 Circumference of Circumscribed Polygon

  20. A. B. C. D. Example 6

More Related