Answer:
3.14
Explanation:
Hello! To get the formula we must first use the formula!
The formula is pi * r^2. In this case since r = 1, we know 1 * 1 = 1.
And since we are going to use 3.14 for pi, we can do 1 * 3.14 which is 3.14.
Hoped this helped ya :)