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Through how many radians does the hour hand turn from (1:20) to (6:50)?घंटे की सुई (1:20) से (6:50) तक कितने रेडियन घूमती है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\frac{11\pi}{12})(\frac{11\pi}{12})
The time difference is (\frac{11}{2}) hours and the hour hand turns (30^\circ) per hour. The total angle is (165^\circ=\frac{11\pi}{12}).समय अंतर (\frac{11}{2}) घंटे है और घंटे की सुई (30^\circ) प्रति घंटा घूमती है। कुल कोण (165^\circ=\frac{11\pi}{12}) है।
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