Yes. A reference sheet is built into the Bluebook app and available on every Math question. It includes common geometry formulas: area and circumference of a circle, area of a rectangle and triangle, the Pythagorean theorem, the special right triangles, and volume formulas. It does not include algebra formulas, so those you must memorize.
Knowing the sheet exists is worth less than knowing what is missing from it. Every Algebra and Advanced Math relationship you need has to be memorised, and those two domains together are far more of the section than Geometry is. Read the sheet once before test day so you never spend time hunting it for something it does not contain.
The full picture, with the surrounding detail, is in SAT Math Formulas You Actually Need to Memorize (2026).