Answer: 6a^2b
Step-by-step explanation:
area = base*height
height = area/base
height = (24a^5b^6)/(4a^3b^5)
height = 6a^2b
To divide the variable terms, use the rule that (x^y)/(x^z) = x^(y-z). So for example: (a^5)/(a^3) = a^(5-3) = a^2. The coefficients divide like normal.