Download presentation

Presentation is loading. Please wait.

Published byAiden Dean Modified over 2 years ago

1
Area and Circumference of Circles

2
1. Radius- any line segment that connects the center to a point on the circle VOCABULARY Radius

3
2. Diameter- any line segment that passes through the center of the circle and connects two points on the circle. The diameter is twice the length of the radius.

4
3. Circumference is the word used to describe the distance around the outside of a circle.

5
A=π r 2 Formulas C= 2πr Or C= πd

6
What is pi? Pi is the ratio of the circumference of the circle to its diameter. π

7
Pi is an infinite decimal. Lets take a look….. The first 500 digits of pi.

8
Practice Problems 1. A hot tub has a diameter of 6 feet. What is the circumference and area of the hot tub?

9
Practice Problems 2. The circumference of your CD is cm. What is the radius?

10
Practice Problems 3. The radius of a circular rug is 4 ft. What is the circumference and area of the rug?

11
pi html

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google