A roller is 3.5m long and has a radius of 90cm. find the number of revolution it should make to cover an area of 1287sq.m.
Answers
Answered by
2
Answer:
Area covered by cylindrical roller in one revolution = Curved surface area of cylinder
Curved surface of cylinder =2πr×l=2π×(1.75)(2.5)=27.5 m2
Revolution =Area covered in one revolutionTotal Area=27.55500=200
please mark me as brainliest
Answered by
2
Step-by-step explanation:
Area covered by cylindrical roller in one revolution = Curved surface area of cylinder
Curved surface of cylinder =2πr×l=2π×(1.75)(2.5)=27.5 m
2
Revolution =
Area covered in one revolution
Total Area
=
27.5
5500
=200
Similar questions