This document provides essential formulas for calculating areas and perimeters of various geometric shapes. It serves as a quick reference guide for students studying geometria piana (plane geometry).
Key points:
- Covers formulas for squares, rectangles, parallelograms, rhombuses, triangles, trapezoids, and circles
- Includes both area and perimeter formulas where applicable
- Provides inverse formulas for finding side lengths or heights given the area