YELLOW SUBMARINE, Part One
You are being asked to 'minimize' perimeter. Did you recognize that this is an optimization problem?
The first thing you will do is build a geometric equation that represents the situation. Then you will apply Calculus.
What do we know?
Now that we have an equation, P(h), let's find it's minimum value.
To find the h-value of the max and min, set
Then, for a complete answer, don't forget to find the corresponding value of b.