For the structure, see Pyramid. A pyramid is a three-dimensional shape. It has triangular sides that come together in a point at the top, call the  apex . A pyramid with a square base (bottom) and four sides is called a square pyramid. A pyramid with a triangular base and three sides is called a tetrahedron.
If youâre going to be an online personal trainer, do it right. If youâre looking at how to become a personal trainer online there are two ways to do it: 1  Take on a smallish amount of clients (10-20) at $100+/month.2  This is at least an extra $1,000/month! (and $100/month is a low price.). 3  Take a step back from training in person and commit more time.f youâre going to be an online personal trainer, do it right. If youâre looking at how to become a personal trainer online there are two ways to do it: 1  Take on a smallish amount of clients (10-20) at $100+/month.
Typical costs: 1  Voice lessons usually cost from $10-$35 for a half-hour lesson in most areas. However, professional-level instructors may charge as much as $100-$200 or more an hour, depending on their expertise and reputation. 2  ExpertVillage.com provides a library of free online voice videos .