Equilateral Triangle Formulas

Memorizing the formulas for equilateral triangles is essential for solving related geometry problems quickly.

• Area from side length, s: $A = \frac{s^2\sqrt{3}}{4}$
• Area from height, h: $A = \frac{h^2\sqrt{3}}{3}$
• Height from side length, s: $h = \frac{s\sqrt{3}}{2}$