# What Is a Quadrilateral? Definition, Types, and Formulas

> A complete guide to quadrilaterals: definition, classifications (square, rectangle, parallelogram, trapezoid, rhombus), properties, and area/perimeter formulas.

**URL:** https://www.calculatoranswers.com/what-is-a-quadrilateral
**Category:** Math

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

---

*This page is part of Calculator Answers — simple calculators, clear answers, no signup required. View all calculators at https://www.calculatoranswers.com/calculators*