Maths to the Masses

Happy Christmas from The Secret Garden of Maths!
http://news.bbc.co.uk/1/hi/uk/8428406.stm

Can you work out the size of angle xº?

That’s a regular hexagon and a regular pentagon.  Good luck!

(Hint: Consider the size of the interior angles in a polygon, the sum of angles round a point, and the sum of angles on a line)

(This is my first post in quite a while – apologies for the delay. I’ve been trying to become a qualified teacher!). [Read more →]

Want to lose weight fast?  Then jump on a plane to the equator!

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I was very saddened to hear today of Stephen Gateley’s sudden death.  Stephen gave a huge amount to pop music and was an inspirational figure.  May he rest in peace.

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What is this shape called?

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A Geometric Secret of A4 Paper

Problem:

We wish to make two folds in a rectangular piece of paper to form a trapezium (or trapezoid for the chaps across the water).  [Read more →]

In Part I we calculated the probability of winning a single-suit version of the Higher of Lower card game.  The objective of this post is to find the probability of winning the full, unsimplified, 4-suit version of the game played in pubs across the land. [Read more →]

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A Geometric Secret of A4 Paper

I’m not just going to give the answer away this time!  At least not for a while anyway… (Click here for the solution) [Read more →]