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This worksheet covers Sectors, which is part of the Circle Measurements and Graphs module in the SAT Math course. Practice problems are designed to strengthen key concepts and build confidence.
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Set 3 — Foundation
A circle has a radius of 6 cm. What is the area of a sector with a central angle of 60 degrees? (Use )
18.84 cm²
12.56 cm²
36.00 cm²
9.42 cm²
A sector of a circle has an area of 25π cm² and a radius of 10 cm. What is the central angle of the sector in degrees?
90 degrees
45 degrees
60 degrees
120 degrees
What is the arc length of a circle with a radius of 5 cm and a central angle of 120 degrees? (Use )
10.47 cm
15.71 cm
20.94 cm
7.85 cm
If a circle has a radius of 8 cm and a central angle of 180 degrees, what is the area of the sector?
32π cm²
16π cm²
24π cm²
8π cm²
A circle has a radius of 4 cm. What is the area of the sector with a central angle of 90 degrees?
4π cm²
8π cm²
2π cm²
6π cm²
What is the arc length of a circle with a radius of 3 cm and a central angle of 270 degrees?
14.13 cm
18.84 cm
6.28 cm
8.42 cm
A circular sector has an area of 50π cm² and a radius of 10 cm. What is the central angle of this sector?
180 degrees
120 degrees
90 degrees
60 degrees
If the radius of a circle is doubled, how does the area of a sector change if the central angle remains the same?
It doubles.
It quadruples.
It remains the same.
It decreases by half.
A sector of a circle has a radius of 12 cm and a central angle of 30 degrees. What is the area of the sector? (Use )
12π cm²
6π cm²
3π cm²
4π cm²
If the radius of a circle is 9 cm and the area of a sector is 20π cm², what is the central angle of the sector?
45 degrees
60 degrees
90 degrees
120 degrees
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