w arm - up area of a regular polygon:________________________ area of circle:...
Post on 19-Dec-2015
226 Views
Preview:
TRANSCRIPT
WARM-UP
Area of a regular polygon:________________________
Area of Circle: ______________________________
Learning Intentions:
Today I will…1) Learn new vocabulary: annuluses, sectors, and
segments of circles
2) Discover formulas and methods for calculating the area of annuluses, sectors, and segments of circles.
Success Criteria:
I am successful if…
1)I can identify and apply the appropriate formula for an annulus, sector or segment of a circle.
2)I can complete at least 80% of my practice problems.
…But first, are there anyquestions from worksheet 8.5
SectorA sector of a circle is the region between two radii and an arc of the circle.
SegmentA segment of a circle is the region between a chord and an arc of the circle.
Sector
AnnulusA annulus is the region between two concentric circles.
Example 2
Example 3
Example 4
Area of sector
Area of segment
Area of Annulus
Click for Video!
Now Practice.
top related