Warm-Up A circle has a diameter of 10 in. What is the arc length in radians of a sector with 135°? What is the arc length in radians of a sector with 95°?

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Presentation transcript:

Warm-Up A circle has a diameter of 10 in. What is the arc length in radians of a sector with 135°? What is the arc length in radians of a sector with 95°? The circle has a circumference of 36π feet. If a degree measure is ⅘π, what is the measure of the minor arc?

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Ex 3 & 4. Find the area. Round to the nearest tenths. 53 cm 7.6 yd

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

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Find the area of the sector to the nearest hundredths. Example 5 Find the area of the sector to the nearest hundredths. R 6 cm 60  Q A  18.85 cm2

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Working Backwards

Ex 7 Find the radius of the circle if the area of the circle is 225 cm2.

Ex 8 Find the radius. Round to the nearest hundredth.  100◦

Ex 9 Find the radius. Round to the nearest hundredth. 80◦ 

Area of a Segment

Ex. 10 Find the area of the segment to the nearest hundredths.

Ex. 11 Find the area of the segment to the nearest hundredths.

Classwork Worksheet Omit #10