A lawn mower takes 600 complete revolutions to mow the lawn. Find the area of the lawn, if the
diameter of the lawn mower is 42 cm and length is 1.5 m.
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Answer:
formula =2pirh
1m =100 cm
1.5m=0.15 cm
diameter =42/2
=21 cm
2×22/7×21×15/100
13.5 cm
revolution =600
600×13.5
8100
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