Question

The area of a circular swimming pool is approximately 18 m2 which is the best estimate of the radius

Answer 1

Answer:

2.39 meter

Step-by-step explanation:

Let r be the radius of the circular swimming pool and A be the area of circular swimming pool.

Given.

The area of circular swimming pool is $18m^{2}$

$A = 18$

The area of circle = $\pi r^{2}$

$A=\pi r^{2}$-------(1)

Put A value in equation 1.

$18=\pi r^{2}$

$r^{2}=\frac{18}{\pi }$

Put $\pi =\frac{22}{7}$ value.

$r=\sqrt{ \frac{18}{\frac{22}{7} }$

$r=\sqrt{\frac{18\times 7}{22} }$

$r=\sqrt{ \frac{126}{22} }$

$r=\sqrt{5.72}$

$r=2.39mtere$

The radius of the circle is 2.39 meter.