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Geometry & measuresCommon

Trigonometry:Finding a side

Label the sides H, O and A from the angle, pick SOH, CAH or TOA, then solve. Triangles turn so the labels change each time.

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

Trigonometry: finding a side, first page
Common

Trigonometry:Finding a side

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