The distance along an arc measured in linear units.
area of a sector
arc length
arc of a circle
sector of a circle
2. Multiple Choice
30 seconds
1 pt
In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.
5
9
8
6
3. Multiple Choice
20 seconds
1 pt
A ____ angle is an angle whose vertex is a the center of a circle.
supplementary
complimentary
central
obtuse
4. Multiple Choice
30 seconds
1 pt
Find the arc length. Leave your answer in terms of π.
7/4π
7/2π
1/8π
45π
5. Multiple Choice
1.5 minutes
1 pt
In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet. Find the measure of minor arc AB to the nearest degree.
90
60
55
113
6. Multiple Choice
1 minute
1 pt
A region bounded by two radii of the circle and their intercepted arc is a ....
arc of a circle
arc length of a circle
sector of a circle
segment of a circle
7. Multiple Choice
2 minutes
1 pt
Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer to the nearest tenth of a square inch.
9.2 sq. in.
10.5 sq. in.
31.4 sq. in.
38.2 sq. in.
8. Multiple Choice
2 minutes
1 pt
Find the area of the dark blue sector shown at the left. The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units. Express answer to thenearest tenth of a square unit.