Find area covered by a road roller in 250 revolution if it's radius is 42cm and length is 80cm
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Answer:5280000cm²
Step-by-step explanation:
Area covered in 1 revolution=2πrh
=2*22*42*80/7
=44*6*80
=21,120 cm²
Area covered in 250 revolution=250*21120
=5280000 cm²
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