the diameter of a 120 cm long roller is 84 cm It takes 1000 complete revolutions in moving once over to level a playground what is the area of the playground
Answers
Answered by
5
FORMULA
© ATQ,
CONVERSION,
Answered by
1
Explanation:
ANSWER
Given:
Height =120cm, R=
2
84
=42 cm
⇒CSA=2πrh=2×
7
22
×42×120cm
2
=31680 cm
2
⇒Area =500×CSA
=500×31680 cm
2
=15480000cm
2
=
10000
15840000
m
2
=1548 m
2
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