1 / 16

Warm-Up

Warm-Up. Multiply. 1. 89 x 97 2. 234 x 76 3. 837 x 34 4. 38 x 28. 10.7 Circumference and Area: CIRCLES. Pre-Algebra. Sir Cumference and the Dragon of Pi Circumference of Circles. Parts of a circle!. Circumference The distance AROUND the circle Center

alden-wynn
Download Presentation

Warm-Up

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. Warm-Up • Multiply. • 1. 89 x 97 • 2. 234 x 76 • 3. 837 x 34 • 4. 38 x 28

  2. 10.7 Circumference and Area: CIRCLES Pre-Algebra

  3. Sir Cumference and the Dragon of PiCircumference of Circles

  4. Parts of a circle! • Circumference • The distance AROUND the circle • Center • The given point in the very middle • Radius • The distance from the CENTER to ANY point on the circle • Diameter • The distance across the circle THROUGH its center

  5. Circumference • Formulas • C=2 r • C = d • C is Circumference • is 3.14 • r is radius • d is diameter

  6. Area • A = r2 • A is the Area • Pi is 3.14 • R is the radius squared

  7. SHOW ALL OF YOUR WORK EVERY TIME!!!!! • FORMULA • WORK • ANSWER • UNITS

  8. Examples • 1. Find the circumference and area of the circle if: • r = 2 cm

  9. Examples • 2. Find the circumference and area of the circle if: • d = 6 in

  10. Find the circumference and area to the nearest tenth. • 3. 12 in.

  11. Find the circumference and area to the nearest tenth. • 4. 7.1 m

  12. Find the circumference and area to the nearest tenth. • 5. 11 ft

  13. Find the circumference and area to the nearest tenth. • 6. 8.3 cm

  14. 10.7 Study Guide and Intervention Write ALL formulas EVERY time and SHOW all work!

  15. Homework!Write ALL formulas EVERY time and SHOW all work!

  16. Do not just Guess!!! Show WORK!!!!

More Related