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Mathia Software Program
Cosine Rule
Missing Angle
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Find Angle
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8:17
YouTube
The Maths Prof
The Maths Prof: The Cosine Rule
In this lesson I show you how to use The Cosine Rule to find the LENGTH of a side in a triangle and then, an ANGLE. If you want to skip ahead to finding an ANGLE go to 5:15 Another lesson to follow soon with some more difficult examples! I hope you find the lesson useful! Subscribe to my YouTube channel to stay up to date with new uploads and ...
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