fiona draws a circle with a diameter of 14 meters. what is the area of fionas circle?\n$7pi m^{2}$\n$14pi…
fiona draws a circle with a diameter of 14 meters. what is the area of fionas circle?\n$7pi m^{2}$\n$14pi m^{2}$\n$28pi m^{2}$\n$49pi m^{2}$
Answer
Explanation:
Step1: Find the radius
The radius $r$ of a circle is half of the diameter $d$. Given $d = 14$ m, so $r=\frac{d}{2}=\frac{14}{2}=7$ m.
Step2: Calculate the area
The formula for the area $A$ of a circle is $A=\pi r^{2}$. Substitute $r = 7$ m into the formula, we get $A=\pi\times7^{2}=49\pi$ m².
Answer:
D. $49\pi$ m²