The area of a sector of a circle with radius 7 cm and central angle 90° is:
2025
The area of a sector of a circle with radius 7 cm and central angle 90° is:
- A.
38.5 cm²
- B.
35.2 cm²
- C.
40.5 cm²
- D.
42.62 cm²
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Correct answer: A
Area of sector = theta/360 x pi r^2 = 90/360 x pi x 7^2 = 49pi/4 = 38.5 square cm.