1.

The diameter of a cycle wheel is 21 cm. How many revolutions will it make to travel 1.98km?inn 1 75 m in diameter and 2 mm thick must be melted to form a cubcid of dimer

Answer»

Number of revolutions = Total distance / Circumference of circle= (1.98*100000) / (2*(22/7)*21)= 198000 / 132= 1500 revolutions.

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