Puzzle
Geometry & measuresPuzzle
Code breaker:Trigonometry, finding angles
Thirteen diagrams, each with two sides given and the angle x to find. Sine, cosine and tangent are mixed, the angle moves to the top corner, and the last two hide the right-angled triangle in an isosceles triangle and a rectangle. The wrong ratio, or the fraction upside down, still unlocks a letter. One per A4.
A free key stage 3 and GCSE geometry and measures puzzle with answers, spec code G20. It goes with the lesson on trigonometry: finding an angle.
Lesson
Trigonometry:Finding an angle
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