Question

the radius of a circle is 6 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 $r = 6$ cm, so $A=\pi\times(6)^{2}= 36\pi$ $cm^{2}$.

Step3: Calculate numerical value

Taking $\pi\approx3.14159$, then $A\approx36\times3.14159 = 113.09724$ $cm^{2}$.

Step4: Round to nearest whole number

Rounding $113.09724$ to the nearest whole number gives $113$ $cm^{2}$.

Answer:

$113$ $cm^{2}$