Trigonometry: Area of a non-right-angled triangle (1/2)absinC
12:42
YouTubeSecondarySTEM
Trigonometry: Area of a non-right-angled triangle (1/2)absinC
This video teaches the area rule for non-right-angled triangles. I show a brief proof for the rule and then teach how to use it to find the area of a triangle or to find a missing side or angle when given the area. There are 4 worked examples of varying difficulty. Playlist of trigonometry: https://www.youtube.com/playlist?list ...
1.7K viewsSep 12, 2023
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