Warm up: Solve for x 1.) 2.) 4.) 3.) 124◦ 70◦ x 18◦ x 260◦ x 20◦ 110◦

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Presentation transcript:

Warm up: Solve for x 1.) 2.) 4.) 3.) 124◦ 70◦ x 18◦ x 260◦ x 20◦ 110◦

EOC REVIEW Question of the Day

Questions over hw?

Skills Check

Circumference, Arc Length, Area, and Area of Sectors

The distance around a circle Circumference The distance around a circle

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Ex 3 and 4: Find the circumference. Round to the nearest tenths. 33 yd 14.3 mm

Arc Length The distance along the curved line making the arc (NOT a degree amount) 

Arc Length

Ex 5. Find the Arc Length Round to the nearest hundredths 8m  70

Ex 6. Find the exact Arc Length. 

Ex 7. What happens to the arc length if the radius were to be doubled Ex 7. What happens to the arc length if the radius were to be doubled? Halved? 

Ex 8. Find the perimeter of the region.

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Area of a Sector the region bounded by two radii of the circle and their intercepted arc.

Area of a Sector

Find the area of the sector to the nearest hundredths. Example 12 Find the area of the sector to the nearest hundredths. R 6 cm 60 Q A  18.85 cm2

Find the exact area of the sector. Example 13 Find the exact area of the sector. 6 cm 120 7 cm Q R

(Area of sector) – (Area of triangle) Example 14 Area of minor segment = (Area of sector) – (Area of triangle) R Q 12 yd

Textbook p. 411 #2 – 14