Answer:
4√6
Explanation:
You have a rectangle with an area of 12√30 and one side of length 3√5. You want the measure of the other side.
Rectangle area
The area formula is ...
A = LW
Solving for L gives ...
L = A/W
Application
The width of the given rectangle is ...
L = (12√30)/(3√5) = (12/3)√(30/5) = 4√6
The measure of the other side is 4√6.