Question

find the area. 113.04cm² 12.56cm² 3.14cm² 28.26cm²

Explanation:

Step1: Recall area formula for circle

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

Step2: Determine radius from diameter

If the diameter $d = 6$ cm, then the radius $r=\frac{d}{2}=\frac{6}{2}=3$ cm.

Step3: Calculate the area

Substitute $r = 3$ into the area formula: $A=\pi\times3^{2}=9\pi$. Using $\pi\approx3.14$, we get $A = 9\times3.14=28.26$ $cm^{2}$.

Answer:

$28.26$ $cm^{2}$