The volume of the hot tub is 2,300 liters and the height is 1.2 m . What is the radius of the bottom of the tub? First, calculate the area of the bottom of the tub as an intermediate result : \( \mathrm{A}= \) (four decimal places) Answer. Radius of the bottom of the hot tub \( \mathrm{r}=\square \mathrm{m} \) (two decimal place Check
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To find the radius of the bottom of the hot tub, we can start by calculating the area of the bottom, which is a circle. The volume of the hot tub is given by the formula: \[ \text{Volume} = \text{Area} \times \text{Height} \] Rearranging this gives us: \[ \text{Area} = \frac{\text{Volume}}{\text{Height}} = \frac{2300\, \text{liters}}{1.2\, \text{m}} = \frac{2300 \, \text{dm}^3}{1.2 \, \text{m}} = 1916.6667 \, \text{dm}^2 \] Since 1 m² equals 100 dm², we can express the area in square meters: \[ \text{A} \approx 191.6667 \, \text{m}^2 \] Now, we can calculate the radius using the area of the circle formula, \(A = \pi r^2\): \[ r = \sqrt{\frac{A}{\pi}} = \sqrt{\frac{191.6667}{\pi}} \approx 7.81 \, \text{m} \] Thus, the radius of the bottom of the hot tub \( \mathrm{r} \approx 7.81 \mathrm{m} \).