Since **Euclid**, we have learned mathematics to understand geometry. However, one of the main concerns of every student about geometry is memorizing the main geometry formulas.

## What Are the Main Geometry Formulas?

These formulas will help you find geometric shapes’ dimensions, perimeter, area, surface area, volume, etc. The formulas for finding dimensions, perimeter, area, surface area, volume, etc., of 2D and 3D geometric shapes, are known as geometry formulas. 2D shapes consist of flat shapes like squares, circles, triangles, etc.; cubes, cuboids, spheres, cylinders, cones, etc., are some 3D shapes.

That’s why this directory is intended as a review of basic formulas and properties. Below you will find several essential geometry formulas and properties to help you solve geometry questions. If you get stumped while working on a problem and need help to come up with a formula, this is the place to look. Do not forget to bookmark this directory!

If you also need a really good book to learn geometry, you should get **Richard Rusczyk’s Art of Problem Solving: Introduction to Geometry.**