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Fifty pence (British coin)

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.

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.

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 ...

equilateral curve heptagon - British Museum

www.britishmuseum.org/pdf/How_do_you_construct_a_50p.pdf

Students will construct a reuleaux heptagon and then analyse the shape ... search for a solution using reasoned argument. Equipment required. •. 50p coins.

Grand Illusions - Articles - Solids of Constant Width

www.grand-illusions.com/articles/solids_of_constant_width/

Most UK coins are circular, but two coins are seven-sided, the 50 pence coin ( shown ... In fact the coin is an equilaterally curved heptagon, or Reuleaux polygon ...

On This Day: First 50p coins cause instant confusion - Yahoo News UK

uk.news.yahoo.com/on-this-day--first-50p-coins-cause-instant-confusion-160430607.html

Oct 11, 2013 ... The new heptagonal coin replaced the 10-shilling note – although would be used alongside the old currency until 1971 when the ...

A Short History of English Coins

www.bsswebsite.me.uk/A Short History of/coins.html

When the first Celtic coins were minted in Britain around 80 B.C., they were Potins ..... world's first coin to be struck in the shape of an equilateral curve heptagon.

Unusual / odd coins around the world - Fleur de Coin

www.fleur-de-coin.com/articles/unusual-coins

Polygon-shaped coins. A number of the United Kingdom's 50-pence coins are seven-sided, including this commemorative piece marking the British Presidency  ...

heptagon - Dictionary Definition : Vocabulary.com

www.vocabulary.com/dictionary/heptagon

A heptagon is a polygon with seven sides, just as an octagon has eight sides. ... most commonly in coins: the British 20p and 50p pieces are both heptagons.

More Info

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

www.worldofcoins.eu

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 ...

How round is your money? - Maths Careers

www.mathscareers.org.uk

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 are ...

Monthly Maths Maths - MEI

www.mei.org.uk

down. UK 50 and 20 pence coins are not regular heptagons, since each of the seven sides is curved not flat. These coins are regular curvilinear heptagons,.