.021 मी त्रिज्या वाली एक पहिया को अंकमी दूरी तय करने में कितना चक्कर
लगाएगी?​

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1. Answer:

   Radius is the measurement of a straight

   line from the center of a circle to the edge.

   Radius will always equal one half diameter.

   Diameter is the measurement of a

   straight line across the center of an object

   (in this case a wheel).

   The circumference of a circle is the total

   distance around its outside.

   Circumference equals the diameter of the circle times

   π (pi), which is about 3.14. One revolution

   of a wheel will make it move a distance

   equal to its circumference.

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