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.
You can also expect to pay more in larger cities than in smaller markets. The average cost of in-home training ranges from $75 to $125, no matter where you live. You might find lower prices if you live in a small town or if you find a new trainer, and you also may have to pay more for an experienced trainer.ou can also expect to pay more in larger cities than in smaller markets. The average cost of in-home training ranges from $75 to $125, no matter where you live. You might find lower prices if you live in a small town or if you find a new trainer, and you also may have to pay more for an experienced trainer.