﻿ Heron's Formula Proofs, Lesson Plans, Class Activities & Background Information
Heron's Formula
Proofs, Lesson Plans, Class Activities, Science Fair Projects & Background Information
For Middle and High School Students & Teachers

Heron's Formula Resources

### Definition

Heron's formula gives the area A of a triangle whose side lengths are a, b, and c.

s is the semiperimeter of the triangle:

### Background Information

• Heron's formula - Wikipedia [View Resource]
• Heron's Formula - MathWorld [View Resource]
• Hero of Alexandria [View Resource]

### K-12 Lesson Plans, Activities and Science Fair Projects

• Perimeter & Area of Triangles [View Resource]
• Heron's Formula and Brahmagupta's Generalization [View Resource]
• Heron's Formula: a selection of answers from the Dr. Math archives [View Resource]
• Heron's formula viewed rationally (video) [View Resource]
• A Geometric Proof of Heron's Formula [View Resource]
• A Proof of the Pythagorean Theorem From Heron's Formula [View Resource]
• Problem Solving with Heron's Formula [View Resource]
• Heron's Formula for Area of a Triangle - Geometry Calculator [View Resource]
• Triangular Discoveries: A Look into Heron's Formula and Beyond [View Resource]
• Heron's Formula Practice Problems [View Resource]
• Explore some aspects of triangles in an interactive fashion. [View Resource]
• Heron’s Formula Lesson [View Resource]
• Using Heron's Formula to determine the area of a triangle while only knowing the lengths (video) [View Resource]
• Problem solving with heron's formula [View Resource]
• Geometrical Proof of Heron’s Formula [View Resource]

• Brahmagupta's Formula [View Resource]

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Last updated: June 2013