
Description
Pupils discover sine, cosine and tangent ratios by measuring sides and angles in triangles.
Files 
Trigonometry discovery (Investigation)16/4/2015 Wheelchair ramp (Problem solving)15/4/2015
Trigonometry missing sides (QQ)15/4/2015
Pythagoras or trigonometry (QQ)15/4/2015
Trigonometric tables15/4/2015

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September 2015
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