… or, three easy steps to talking with your kids about $\sec(x)$1 If there’s one question parents dread more than “Where do babies come from?”, it’s “Can you give me some help with maths homework?” There are many possible reasons for this. The most common one I hear is “they

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Posted in triangles.

pointed me at a puzzle by at MathsJam: or at the Science Punk blog. The question is: how many triangles are there in a ‘Mystic Rose’ shape like this one (right) – with six interconnected points. I reckon there are 110. I got this by splitting it up into different

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