Demonstrations of how to achieve certain things, or good question-writing techniques.

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Christian Lawson-Perfect on Custom marking script for "choose one from a list" 1 month, 3 weeks ago

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Christian Lawson-Perfect published Display a mixed fraction 2 months, 2 weeks ago

Christian Lawson-Perfect created Display a mixed fraction 2 months, 2 weeks ago

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Christian Lawson-Perfect on Different styles of number notation 3 months ago

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Christian Lawson-Perfect on Show all the factors of a number 3 months, 3 weeks ago

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Christian Lawson-Perfect on Show the prime factorisation of a number 3 months, 3 weeks ago

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David Wishart on Randomly give two of hypotenuse, opposite, and adjacent side of a triangle 4 months, 1 week ago

I've done some trig questions recently that have triangles drawn in JSXGraph that could be useful here.

I've cobbled one into your question below, the scaling of the angle symbol is a bit ungainly as the set of triangles that I wrote it for had different proportions but the principle works.

https://numbas.mathcentre.ac.uk/question/share/view/293e4d1f-a5bd-41df-87d1-6452cb41cc00