Question

the radius of a circle is 8 cm. find its area to the nearest whole number.

Explanation:

Step1: Recall area formula

The formula for the area of a circle is $A = \pi r^{2}$, where $r$ is the radius.

Step2: Substitute radius value

Given $r = 8$ cm, so $A=\pi\times(8)^{2}=\pi\times64$.

Step3: Calculate the value

Taking $\pi\approx3.14$, we have $A\approx3.14\times64 = 200.96$ $cm^{2}$.

Step4: Round to nearest whole number

Rounding 200.96 to the nearest whole number gives 201 $cm^{2}$.

Answer:

201