Question

find the area of a circle with diameter 8 m. use the value 3.14 for π, and do not round your answer. be sure to include the correct unit in your answer.

Explanation:

Step1: Find the radius

The radius $r$ of a circle is half of the diameter $d$. Given $d = 8$ m, so $r=\frac{d}{2}=\frac{8}{2}=4$ m.

Step2: Use the area - formula

The area formula of a circle is $A=\pi r^{2}$. Substitute $r = 4$ m and $\pi=3.14$ into the formula, we get $A=3.14\times4^{2}=3.14\times16$.

Step3: Calculate the area

$3.14\times16 = 50.24$ $m^{2}$.

Answer:

$50.24$ $m^{2}$