SAT Math Geometry Essentials
| Triangle angles | Interior angles sum to 180° |
| Pythagorean theorem | a² + b² = c² |
| Area of triangle | A = 1/2 bh |
| Area of circle | A = πr² |
| Circumference | C = 2πr |
| Right-triangle trig | sin = opposite/hypotenuse, cos = adjacent/hypotenuse, tan = opposite/adjacent |
SAT Algebra Essentials
| Slope | m = (y₂ - y₁) / (x₂ - x₁) |
| Slope-intercept form | y = mx + b |
| Point-slope form | y - y₁ = m(x - x₁) |
| Quadratic formula | x = (-b ± √(b² - 4ac)) / 2a |
| Exponent product | a^m · a^n = a^(m+n) |
| Exponent power | (a^m)^n = a^(mn) |