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Warm-up. Area of a regular polygon:________________________ Area of Circle: ______________________________. Learning Intentions: Today I will … Learn new vocabulary: annuluses , sectors , and segments of circles
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Warm-up Area of a regular polygon:________________________ Area of Circle: ______________________________
Learning Intentions: • Today I will… • Learn new vocabulary: annuluses, sectors, and segments of circles • Discover formulas and methods for calculating the area of annuluses, sectors, and segments of circles. • Success Criteria: • I am successful if… • I can identify and apply the appropriate formula for an annulus, sector or segment of a circle. • I can complete at least 80% of my practice problems.
…But first, are there any questions from worksheet 8.5
Sector A sector of a circle is the region between two radii and an arc of the circle.
Segment A segment of a circle is the region between a chord and an arc of the circle. Sector
Annulus A annulus is the region between two concentric circles.
Area of sector Click for Video! Area of segment Area of Annulus