Download presentation

Presentation is loading. Please wait.

1
**7.7: Areas of Circles and Sectors**

Objective: To find the areas of circles, sectors and segments of circles

2
Area of a Circle: r = radius length MUST USE RADIUS WHEN FINDING AREA!!!

3
**How much more pizza is in a 12-in. diameter pizza than in a 10 in**

How much more pizza is in a 12-in. diameter pizza than in a 10 in. diameter pizza?

4
**Find the area of each circle. Leave your answer in terms of**

1. 2. 12.5 m 30 ft

5
**Find the area of the circle. Round your answer to the nearest tenth.**

6
**Area of a Sector of a Circle**

Region bounded by an arc and 2 radii Name using an arc endpoint, the center of the circle, and the other endpoint It is a fraction of the circle’s AREA A r B O

7
Area of a Sector: Area of a sector = measure of the arc • 360

8
**Find the area of each sector. Leave your answers in terms of**

K A 72◦ 20cm 5 ft. B J O O

9
Segment of a Circle: Part of a circle bounded by an arc and the segment joining its endpoints TO FIND THE AREA OF A SEGMENT: n Area of Sector – Area of Triangle

10
**Find the area of each segment. Round your answer to the nearest tenth.**

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google