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Geometry & measuresCommon

Trigonometry:Finding a side with sine

Sine only. Label the opposite and the hypotenuse, write sin θ = O over H, then make the unknown the subject of the formula.

A free GCSE Foundation and Higher geometry and measures lesson on trigonometry: finding a side with sine, spec code G20. It has a lesson deck to teach from with a visualiser, a worksheet with answers, an exit ticket and a method video.

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