Question

find the area of the circle. use 3.14 for π. round to the nearest hundredth if necessary. 3.5 in. in²

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 values

Given $r = 3.5$ in and $\pi=3.14$, we substitute into the formula: $A=3.14\times(3.5)^{2}$.

Step3: Calculate the square

$(3.5)^{2}=3.5\times3.5 = 12.25$.

Step4: Multiply by $\pi$

$A = 3.14\times12.25=38.465$.

Step5: Round to nearest hundredth

Rounding $38.465$ to the nearest hundredth gives $38.47$.

Answer:

$38.47$