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Fifty pence (British coin) - Wikipedia

en.wikipedia.org/wiki/Fifty_pence_(British_coin)

The British decimal fifty pence (50p) coin – often pronounced fifty pee – is a unit of currency equaling one half of a pound sterling. It is a seven-sided coin formed as an equilateral-c...

Seven sides of a 50p coin | The Royal Mint

www.royalmint.com/discover/uk-coins/seven-sides-of-a-50p-coin

Since the introduction of the 50p coin in 1969 it has become one of the most ... It was the world's first seven-sided coin, in the shape of an equilateral curve heptagon. ... to be the best for distinguishing the coin from the rest of the UK coinage.

What shape is a 20 pence piece? | matheminutes

matheminutes.blogspot.com/2011/12/what-shape-is-20-pence-piece.html

Dec 28, 2011 ... All but two UK coins are circular. ... This would indicate that it might be a regular heptagon. ... Why are these shapes chosen for coins though?

Which British coin is a heptagon - Answers.com

www.answers.com/Q/Which_British_coin_is_a_heptagon

The British 20 Pence and 50 Pence coins are both heptagons.

An Alphabet of Heptagons: Seven-sided Coins - World of Coins

www.worldofcoins.eu/forum/index.php?topic=9903.0

The first heptagonal coin was created by the Royal Mint (UK). It was a British 50 pence coin, first issued in 1969. In this topic, I will give priority ...

Heptagon - math word definition - Math Open Reference

www.mathopenref.com/heptagon.html

Heptagons are not seen much in everyday life except in the UK, where there are coins in the shape of a heptagon. On the right is the 50 pence coin. It is not a ...

How round is your money? - Maths Careers

www.mathscareers.org.uk/article/round-money/

50p coin. The British 50p coin, like the 20p coin, has a rather unusual shape. It is an equilaterally curved heptagon. That is, it has seven equal sides, all of which ...

Fifty Pence Coins - A Brief History of the 50 Pence ... - 24Carat.co.uk

24carat.co.uk/fiftypencestory.html

Reverse of 1998 Britain's 25th Anniversary of EU Membership Fifty Pence ... The last coins of the old £sd system to be issued for circulation were dated 1967, and the first decimal coins were ... It was the world's first equilateral curve heptagon.

2D Polygon Shapes - Facts about Pentagons, Hexagons, Octagons ...

www.kidsmathgamesonline.com/facts/geometry/2dpolygonshapes.html

Enjoy learning about 2D polygon shapes with our range of interesting facts. ... The British 50 and 20 pence coins are curved heptagons. An octagon is an 8 ...

Monthly Maths Maths - MEI

mei.org.uk/files/pdf/mm/april-2014.pdf

coin will save taxpayers money by cutting down on millions of ... machines in the UK to accept the new coin could be ... coins are regular curvilinear heptagons,.