[size=150]A.S. is Area of Sector[br][br](answered in units[math]^2[/math])[br][br]Since [math]\pi r^2[/math] is the area of a circle, that's an easy way to remember it![/size]
11.2: Areas of Circles and Sectors
Area of a Circle Explanation:
Area if a Circle Equation:
[size=150][math]A=\pi r^2[/math][br][br]where r is the radius of the circle[/size][br][br](answered in units[math]^2[/math])
Page 7 Check Answers:
Practice #1:[br][br]Answer as # units^2
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Practice #2:[br][br]Answer as # units [br][br]Round to one decimal place for all.
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Practice #3:[br][br]Answer as # units[br][br]Remember: it's asking for diameter!
Sector of a Circle:
Definition of Sector of a Circle:
region bounded by 2 radii of the circle and its intercepted arc.[br][br]sector APB is in your notes
What is the area of a sector?
Area of a Sector:
Page 8 Check Answers:
Practice #1:[br][br]Sector UV:[br][br]Answer as # units^2[br]Round to 2 decimals.
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Practice #1:[br][br]What is the major arc intercepted by ∠UTV?
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Practice #1:[br][br]What is that major arc's degree?
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Practice #1:[br][br]Major Sector of ∠UTV:[br][br]Answer as # units^2[br]Round to 2 decimals.
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Practice #2:[br][br]Area of Sector PQ:[br][br]Answer as # units^2[br]Round to 2 decimals.
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Practice #2:[br][br]What is the major arc intercepted by ∠PSQ?
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Practice #2:[br][br]What is that major arc's degree?
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Practice #2:[br][br]Area of Major Sector of ∠PSQ:[br][br]Answer as # units^2[br]Round to 2 decimals.
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Practice #3:[br][br]Area of figure:[br][br]Answer as # units^2[br]Round to 1 decimal.
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Practice #4:[br][br]Area of shaded region:[br][br]Answer as # units^2[br]Round to 1 decimal.
Great work!
Message Miss Hess on Schoology with questions![br][br]Your homework is 11.2 HW. Let the sub know when you've finished the notes, and they will give it to you.[br][br]Have a great weekend! :)
Page 8 Work:
