1. The problem statement, all variables and given/known data Growth is observed for a cubic crystal. Initially the height of the cube is 1 cm . the surface of the cube increases at a rate of 6 cm2 / hour. Question: Calculate dh/dt 2. Relevant equations ds/dt = ds/dh * dh/dt 3. The attempt at a solution ds/dt = 6 cm2 / hour ds/dh = h*h = 2*h My answer: 6/2h The answer I should get: 1/2h I do not understand how to get to that answer thank you.