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What will be the area of a sector with radius (9) cm and angle (120^\circ)?त्रिज्या (9) सेमी और कोण (120^\circ) होने पर त्रिज्यखंड का क्षेत्रफल क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (27\pi) square cm(27\pi) वर्ग सेमी
(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.(120^\circ=\frac{2\pi}{3}) और क्षेत्रफल ( \frac{1}{2}\times81\times\frac{2\pi}{3}=27\pi ) है। डिग्री कोण को पहले रेडियन में बदलें।
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