What will be the area of a sector with radius (9) cm and angle (120^\circ)?
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Answer and explanation
Correct answer: (27\pi) square cm
(120^\circ=\frac{2\pi}{3}), and area is ( \frac{1}{2}\times81\times\frac{2\pi}{3}=27\pi ). Convert the degree angle into radians first.
Frequently asked questions
What is the correct answer to this question?
(27\pi) square cm
Why is this the correct answer?
(120^\circ=\frac{2\pi}{3}), and area is ( \frac{1}{2}\times81\times\frac{2\pi}{3}=27\pi ). Convert the degree angle into radians first.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.
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