A roller takes 500 complete revolution to level a playground find the cost of levelling the ground at the rate of 75 paise per sq meter if the diameter and length of the roller are 84 cm and 120 cm respectively
Answers
Answered by
2
Answer:
Diameter = d = 84cm
Radius = r = d/2 = 42cm
Length = l = 120 cm
T.S.A of cylinder = 2πrh
= 2 x 22/7 x 42 x 120
= 31680 cm²
Area levelled by 500 revolution = Area of playground
= 500 x 31680cm²
= 15840000 cm² [ change into m]
= 1584 m²
Answered by
0
Answer:
hoss was a great man in the world for woman who is not a
Similar questions