Find the missing leg if one leg is 18 units and the hypotenuse is 30 units

24

Step-by-step explanation:

I will assume this is a right triangle with the information given

a^2+b^2 = c^2 is the Pythagorean theorem

18^2 + b^2 = 30^2

Subtract 18^2 from each side

18^2 - 18^2 + b^2 = 30^2 - 18^2

b^2 = 900 - 324

b^2 = 576

Take the square root of each side

sqrt (b^2) = sqrt (576)

b = 24