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What will be the area of a sector with radius (12) cm and angle (45^\circ)?त्रिज्या (12) सेमी और कोण (45^\circ) होने पर त्रिज्यखंड का क्षेत्रफल क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (18\pi) square cm(18\pi) वर्ग सेमी
(45^\circ=\frac{\pi}{4}) and area is ( \frac{1}{2}\times144\times\frac{\pi}{4}=18\pi ). Convert the degree angle into radians first.(45^\circ=\frac{\pi}{4}) और क्षेत्रफल ( \frac{1}{2}\times144\times\frac{\pi}{4}=18\pi ) है। डिग्री कोण को पहले रेडियन में बदलें।
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