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Jokes poster

Why are parallel lines so sad?

They have so much in common but they'll never meet.

Download the poster (PDF)

A4 portrait. It is drawn in vector form, so it also prints sharply scaled up to A3.

The poster

Cartoon maths joke poster. A smiling pair of parallel lines asks: "Why are parallel lines so sad?" Punchline: "They have so much in common but they'll never meet."
Maths joke poster: Why are parallel lines so sad?. IGCSE Math Revision, free for classroom use.

Get it?

Get it? Parallel lines have the same gradient (direction), so they never cross.

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More like this: all our maths jokes.

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