Help needed! Solve for side lengths; Minimize perimeter with known area problem

The solution is sqrt(1000).= 31.623

And with the minimize function:

Tyler Sullivan wrote: I'm sorry but this is so basic... but how do you set up a sheet and solver block for this?  Perimeter = 2x + 2y    area = x*y.  What are the shortest lengths, x and y, so we can have a plot of 1000?  Thanks to all.  I know using "minimize" is key...

And in case you're using Prime instead of proper Mathcad, here's the Prime 3.1 solution (with Valery's solution alongside):

It's interesting that Prime shows 31.623 but M15 doesn't (I checked in my M15 M040)....

Stuart