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Aldakin

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bemahan

2-sided shapes

Hi! My 10 yr old's maths teacher told him that there are no 2-sided shapes and he wants to know if this is right, please? Is a crescent or the centre of a vesica piscis 2-sided? And why isn't a...
21:59 Fri 27th Feb 200916 answers, last by HMac9 11:57 Mon 30th Apr 2018

Only 1 question