Question #N501
A circle has a radius of 5. What is the area of the circle? (Use $\pi \approx 3.14$)
A. 15.7
B. 31.4
C. 78.5
D. 157
Correct Answer is: C
The area of a circle is given by the formula $A = \pi r^2$, where $r$ is the radius. Substituting 5 for $r$ and 3.14 for $\pi$, we get $A \approx 3.14 \cdot 5^2 \approx 3.14 \cdot 25 \approx 78.5$.