Answer:
Multiplication property of equality
Step-by-step explanation:
The multiplication property of equality states that if x = 1, then you can multiply both sides by the same number and both sides will stay equal to each other. Therefore, if x = y, then you can multiply both sides by the 3 to make 3x = 3y and they will still be equal to each other.
I hope you find this helpful. :)
area of circle = pi * radius^2
radius = sqrt(area/pi) = sqrt(45/3.14)
radius = 3.78
round up
radius = 4 inches