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scZoUnD [109]
3 years ago
11

Joanne has a cylindrical, above ground pool. the depth (height) of the pool is 1/2 of its radius, and the volume is 1570 cubic f

eet. What is the area of its bottom floor? Include equations or inequalities related.
Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
5 0

We know that Volume of Cylinder is given by : πr²h

Where : 'r' is the Radius of the Cylinder

             'h' is the Height or Depth of the Cylinder

Given : The Height of the Pool is Half of its Radius

⇒ Height of the Pool =  \frac{r}{2}

Given : The Volume of the Pool = 1570 feet³

⇒ πr²h = 1570

⇒ \pi (r^2)(\frac{r}{2}) = 1570

⇒ (\frac{22}{7})(\frac{r^3}{2}) = 1570

⇒ \frac{22r^3}{14} = 1570

⇒ r^3 = \frac{1570\times 14}{22} = 999

⇒ r = \sqrt[3]{999} = 10\;(approx)

As : Area of the Bottom of the Pool is Circular

We know that Area of Circle is given by : πr²

⇒ Area of the Bottom Floor = π × 10² = 314.15 feet²

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