Finding side lengths (Trigonometry)
Pythagoras' theorem and trigonometry
Essential Mathematics Year 9
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This is the next video in the Pythagoras and Trig section of the Year 9 course looking at how we can use Trigonometry to find the missing side lengths of right angled triangles. Building on the last video I spend time looking at how we can use SOHCAHTOA to find the missing side length when given one angle and one side in a right angled triangle. There are a number of worked examples which frame the theory. I take time to explain the content in a clear and easy to understand way.

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good maths videos for middle school good maths videos good maths videos for high school good maths website good maths teacher maffs guru darren smyth maths tutorials Finding side lengths (Pythagoras' Theorem) Finding side lengths Pythagoras' Theorem right angled triangles finding the missing side lengths of right angles t year 9 maths grade 9 maths trigonometry SOHCAHTOA