Jenifers flower bed is in the shape of a right angle triangle. The shortest side is one/forth of the second shortest side. if the area is 18sqaured what are the lengths of all three sides?

I NEED A ANSWER ASAP! PLEASE

if the short side is x,

(x * 4x)/2 = 18
4x^2 = 36
x^2 = 9
x = 3

so, the sides are 3,12, squareroot(153)