the diameter of a garden roller is 1.4m and it is 2m long. how much area will it cover in 5 revolutions?
Answers
Answered by
485
Diameter = 1.4 m
r = d/2
r = 1.4/2
r = 0.7m
curved surface area of cyclinder = 2 * 22/7 * r^2 = 2 * 22/7 * 0.7 * 0.7 = 8.8 m^2
No of revolution = 5
Therefore = 8.8 * 5 = 44 m2
r = d/2
r = 1.4/2
r = 0.7m
curved surface area of cyclinder = 2 * 22/7 * r^2 = 2 * 22/7 * 0.7 * 0.7 = 8.8 m^2
No of revolution = 5
Therefore = 8.8 * 5 = 44 m2
Answered by
57
Answer:
44 m2
Step-by-step explanation:
Diameter = 1.4 m
r = d/2
r = 1.4/2
r = 0.7m
curved surface area of cyclinder = 2 * 22/7 * r^2 = 2 * 22/7 * 0.7 * 0.7 = 8.8 m^2
No of revolution = 5
Therefore = 8.8 * 5 = 44 m2
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