Diameter and length of a roller are 84 cm and 120 cm respectively. In how many
revolutions, can the roller level the playground of area 1,584 m??
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Answer:
500 revolution.
Step-by-step explanation:
length (height) of roller is 120 cm. area of the playground = 1584 m². Hence, the roller will make 500 revolutions to level the playground.
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