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If (\pi=\frac{22}{7}), through how many radians will a wheel of diameter (70) cm rotate after moving (3080) cm?यदि (\pi=\frac{22}{7}), तो (70) सेमी व्यास वाला पहिया (3080) सेमी चलने पर कुल कितने रेडियन घूमेगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (28\pi)(28\pi)
The wheel circumference is (70\pi=220) cm, so it makes (14) revolutions. The total angle is (14\times2\pi=28\pi) radians.पहिए की परिधि (70\pi=220) सेमी है, इसलिए चक्कर (14) होंगे। कुल कोण (14\times2\pi=28\pi) रेडियन है।
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