Question

the diameter of a roller is 84cm and its length is 120 CM . it takes 500 complete revolutions to roll once over a playground to Level . find the area of the playground in metre square

Answer 1

Answer:

d=84

r= 42

h=120

area=2*22/7*rh

      = 31680

area of playground= 31680*500

                                   158400m^2

Answer 2

Step-by-step explanation:

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