You don't really "solve" math. You apply math to a concrete model. For example, if you want to build a four-sided pyramid and all you have is a really big strai

You don't really "solve" math. You apply math to a concrete model. For example, if you want to build a four-sided pyramid and all you have is a really big straight edge and a really big collapsible compass, you'd probably want to read Euclid first. And if you happen to be doing this 2000 years before Euclid you'd read some of the geometric methods his work was based on. To the extent the surface you're building on is "flat" the axioms and the theorems apply. And so you can square a circle easily using simple tools like cord and stakes. Thus you can build a pyramid with some cordage and a stake.