The diameter of a roller is 84cm and its length is 120cm . it takes 500 complete
revolutions moving once over to level a playground. What is the area of playground.
Answers
Answered by
11
Answer: 1584 square m
Step-by-step explanation:
the area of the cylinder that is in touch with ground is curved surface area of the cylinder.
CSA of this cylinder=2×22/7×r×h
=2×22/7×42×120
=31680 square cm
500 such revolutions of CSA= area of the field.
Area=31680×500
=15840000 square cm
=1584 square m
Similar questions