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Worksheet
Curated OER

Heron's or Hero's Formula for Area of Scalene Triangle

For Students 7th - 8th
In this Heron's or Hero's formula for area of scalene triangle worksheet, students solve 4 word problems using the formula given for area of a triangle.
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Handout
Wolfram Research

Wolfram Math World: Heron's Formula

For Students 9th - 10th
This site provides a detailed overview of Heron's Formula. Content includes a definition, example, and formula.
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Handout
Math Open Reference

Math Open Reference: Heron's Formula

For Students 9th - 10th
Learn about corresponding angles with this resource which offers detailed explanations, examples, and interactives. Subjests covered include the area of a triangle. Links to related topics.
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Interactive
Mocomi & Anibrain Digital Technologies

Mocomi: What Is Heron's Formula?

For Students 2nd - 8th
Define's Heron's Formula and provides examples for how to use the formula to calculate the area of a triangle.