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
2. Multiple Choice
30 seconds
1 pt
is the formula for?
arc length
area of a sector
area of a segment
arc measure
3. Multiple Choice
30 seconds
1 pt
is the formula for?
arc length
area of a sector
area of a segment
arc measure
4. Multiple Choice
1.5 minutes
1 pt
Find the arc length. Leave your answer in terms of π.
7/4π
7/2π
1/8π
45π
5. Multiple Choice
2 minutes
1 pt
Alison is jogging on a circular track that has a radius of 140 feet. She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.
47
74
94
123
6. 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.
0.3 square units
15.7 square units
19.7 square units
50.3 square units
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.