SOLUTION: A cylindrical roller is of length 2m and diameter 84cm.find the number of revolutions it has to make to cover an area of 7920meter squared.
Algebra.Com
Question 803376: A cylindrical roller is of length 2m and diameter 84cm.find the number of revolutions it has to make to cover an area of 7920meter squared.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
A cylindrical roller is of length 2m and diameter 84cm.find the number of revolutions it has to make to cover an area of 7920meter squared.
length of roller = 2m
radius of roller = 84/2 = 42 cm = 0.42 m
surface are of roller = 2pirl
=2*pi*0.42*2
=5.28 m^2
Number of revolutions = 7920/5.28
= 1500 revolutions
RELATED QUESTIONS
A painter is calculating how much paint he will need to cover a cylindrical goal roller... (answered by josmiceli)
A paint roller has a diameter of 4 inches and a height of 10 inches. How many square... (answered by solver91311,jerryguo41)
From a cylindrical object of diameter 70cm and height 84cm a right solid cone having is... (answered by mananth,ikleyn)
A rectangle has a perimeter of 84cm. If 4 cm is taken from the length and added to the... (answered by ikleyn)
a lawn roller is a cylinder 0.96m long and 0.6m in diameter.How many revolutions of the... (answered by ikleyn)
a lawn roller is a cylinder 0.96m long and 0.6m in diameter.How many revolutions of the... (answered by ikleyn,ewatrrr)
A steel roller is 4ft. long and 30 in. in diameter. what area will it cover in rolling... (answered by Fombitz)
A steel roller is 2 ft. Long and 15 in. in diameter. What area will it cover in rolling... (answered by rfer)
From a cylindrical object of diameter 70cm and height 84cm , a right solid cone having... (answered by Alan3354)