The diameter of a roller is 84cm and its length is 120cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m 2 .
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The CSA of cylinder = 2πrh
=2×22/7×42×120
=2× 22 × 6 × 120
=44 × 720
=31680 cm^2
Total area of the play ground is 31680× 500= 15840000 cm^2
= 158400 m^2
plzz select as brain list and follow
=2×22/7×42×120
=2× 22 × 6 × 120
=44 × 720
=31680 cm^2
Total area of the play ground is 31680× 500= 15840000 cm^2
= 158400 m^2
plzz select as brain list and follow
Answered by
1
hope it's help u dear..!!!
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