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Curated Video
Finding the Area of a Triangle
This video explains how to find the area of a triangle when we are given the lengths of the base and vertical height. We also explain how the formula works. Practice questions and answers are at the end of the video.
Khan Academy
Khan Academy: Geometry: Heron's Formula
Demonstrates how to find the area of a triangle using Heron's formula. Practice problems available. [4:43]
Loyola University Chicago
Math Flix: Formula Area of a Triangle
This QuickTime movie explains how to find the area of a triangle by developing an area formula and then demonstrates this by showing how to use the area formula. As you watch and listen to the teacher and student interact it helps...