Parts of a Circle
Presentation
•
Mathematics
•
12th Grade
•
Hard
James Gonzalez
FREE Resource
9 Slides • 3 Questions
1
Areas of Circles and Sectors
2
Area of A Circle
3
Example
How much more pizza is in a 12-in diameter pizza than in a 10-in diameter pizza?
4
Multiple Choice
How much more pizza is in a 14-in diameter pizza than in a 12-in pizza? Round to the nearest whole number
2 in2
41 in2
14 in2
35 in2
5
Sectors
6
Area of a Sector of a Circle
7
Finding the Area of a Sector of a Circle
Find the area of sector ZOM.
8
Multiple Choice
A circle has a diameter of 20 cm. What is the area of a sector bounded by a 208° major arc? Round to the nearest tenth.
181.5cm2
41.6 cm2
200.7 cm2
208 cm2
9
Segment of a circle
A part of a circle bounded by an arc and the segment joining its endpoints is a segment of a circle
To find the area of a segment of a circle, draw a radii to form a sector. The area of the segment equals the area of the sector minus the area of the triangle formed.
10
Finding the Area of a Segment of a circle
Find the area of the shaded segment. Round your answer to the nearest tenth.
11
Multiple Choice
A circle has a radius of 12 cm. Find the area of the smaller segment of the circle determined by a 60° arc. Round your answer to the nearest tenth.
13.7 cm2
15.6 cm2
20 cm2
13.0 cm2
12
10.5 - In formative
Areas of Circles and Sectors
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