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## How many bags of concrete are needed to fill the path 1m3 requires 106 x 20kg bags of concrete The pond is 7m diameter and the path around i

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How many bags of concrete are needed to fill the path 1m3 requires 106 x 20kg bags of concrete The pond is 7m diameter and the path around is 2m 50mm deep

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Mathematics
5 months
2021-08-13T02:04:12+00:00
2021-08-13T02:04:12+00:00 1 Answers
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## Answers ( )

Answer:300 Bags

Step-by-step explanation:According to the Question,

The radius of the pool = 3.5 m; the overall radius including the border = 3.5 + 2 = 5.5moverall area – pool area = border area(A)

A = π×5.5² – π×3.5²

A = 56.55 sq mthe volume of the concrete, change 50 mm to .05 m

56.55 * 05 = 2.8275 cu/meters

1 cubic metre requires 106 x 20 kg bags.106 * 2.8275 = 299.715 ≈ 300bags

300 bagsof 20 kg of premixed concrete We need