GeoGebra Tool for Signed Areas | Algebraic Calculus One | Anna Tomskova

Dr Anna Tomskova explains how to create a tool with GeoGebra to calculate the signed area of a triangle, and uses it to verify an additive identity for signed areas of triangles. This is part of the Algebraic Calculus One course.

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Screenshot PDFs for my videos are available at the website http://wildegg.com. These give you a concise overview of the contents of the lectures for various Playlists: great for review, study and summary.

My research papers can be found at my Research Gate page, at https://www.researchgate.net/profile/...

My blog is at http://njwildberger.com/, where I will discuss lots of foundational issues, along with other things.

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Video Contents:
0:00 GeoGebra Tool for Signed Areas
3:51 Create new tool
5:23 Formula s(ABC)=s(ADC)+s(DCB)

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Algebraic Calculus One (for the Open Learning Course) : Algebraic Calculus One
Algebraic Calculus Two (for the Open Learning Course in preparation): Algebraic Calculus Two

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