Math, asked by biswasmithu530, 4 days ago

The diameter of a 120cm long roller is 84cm.It takes 1000 complete revolutions moving once over to level a playground.What is the area of the playground?

Answers

Answered by imanonymousatheist

Answer:

Radius of the roller (r) = 84/ 2 cm = 42 cm Length of the roller (h) = 120 cm Curved surface area of the roller = 2+rh = 2 × 22/7 x 42 x 120 cm2 = 44 x 720 cm2= 31680 cm2

area covered by the roller in 1 revolution =

31680 cm2

:: area covered by the roller in 1000 revolutions = 31680 x 1000 cm2 = 31680000 cm

Please Mark me as brainlist bro.

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The diameter of a 120cm long roller is 84cm.It takes 1000 complete revolutions moving once over to level a playground.What is the area of the playground?​

Answers

The diameter of a 120cm long roller is 84cm.It takes 1000 complete revolutions moving once over to level a playground.What is the area of the playground?