Download - Lesson 11-6 Pages 493-495
Transcript
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Lesson 11-6 Pages 493-495
Area of Circles
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What you will learn!
How to find the area of circles.
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What you really need to know!
The area A of a circle equals the product of pi () and the square of its radius r. A = r2
Radius
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r
½ of the circumference
½ of 2r
rrA 22
1 2rA
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Link to Pre-Made Lesson
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Example 1:
Find the area of the circle:
4 cm
2rA 2414.3 A224.50 cmA
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Example 2:
Find the area of the circle with a diameter of 11.6 cm.
11.6 cm
2rA 28.514.3 A26.105 cmA
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Page 494
Guided Practice
#’s 4-10
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Page 493 with someone at home
and study examples!
Read:
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Homework: Page 494-495
#’s 11-25, 32-37
Lesson Check 11-6
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Link to11-6 Review Problems
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591
Lesson 11-6