Triangle Area Formulas Cheat Sheet

Struggling to remember all the different ways to find the area of a triangle? This comprehensive, easy-to-read cheat sheet is the ultimate guide for mastering triangle area formulas, all in one place. Whether you're working with a right triangle, equilateral, scalene, or isosceles, this sheet includes every key formula you need—including the standard base × height formula, the sine formula (½ ab sin C), and Heron’s formula for when you only have the side lengths. Designed with clean visuals, labeled diagrams, and simple explanations, it helps you understand not just how, but when to use each formula. Ideal for middle school, high school, or test prep like the SAT, ACT, or AP exams, this one-page reference saves you time, reduces stress, and boosts your accuracy on homework and tests. Whether you’re printing it out or keeping it on your tablet, this cheat sheet is the perfect math companion to help you study smarter—not harder.