Question

The floor of a circular pool has an area of 28 m² what is the radius of the pool rounded to the nearest whole meter?

Answer 1

The area of a circle is given by the formula $A=\pi r^2$, where $A$ is the area and $r$ is the radius of the circle. We are given that $A=28\text{ m}^2$. Substituting this into the formula gives us $28 = \pi r^2$. Solving this equation for $r$ gives $r^2 = \frac{28}{\pi} \approx 8.92$. Taking the square root of both sides gives $r \approx \sqrt{8.92} \approx 2.99$, which rounds to $\boxed{3}$ when rounded to the nearest whole meter.