not all of them are.
Round is an economical shape. Shapes with angles or corners wear faster and in the minting process are more difficult to place for stamping.Not Japanese
Both are round U.S. coins.
In club penguin it costs about 185 coins.
60 coins
play puffle round-up
round coin PCH Answer: It was round
Penny's (and other coins) are used to round out purchases that are made with bills.
With the exception of the 20 and 50 Pence coins all British coins are presently round. The 20 and 50 Pence coins are heptagonal or seven sided.
Only the 50 cent coin, known as yotin, is square shaped. All other coins are round. For a while the 5 florin note was replaced with a square coin but it's now minted as a round coin.
I think pizzatron2000 or dancing. >>> Actually, The Ice fishing game gives you the most coins, yesterday i had 55 coins and i played it 3 times, and i got 800 coins.. sooooo. you need to play that if you want more coins! Those are good games, but the game you can get the MOST coins in is the puffle roundup. you can get around 98 coins per round and each round takes (for me) about 15-20 sec. you could get 1000 coins easy. I think Paint by Letters give you the most because it could give you up to 800 if you find all the secret coins in Lime Green Dojo Clean or Burnt Out Bulbs
The reason is wear and tear. The truth is not all of them are round. The majority of them are but there are many of different shapes.
Presumably, you refer to the Australian 50 cent coin. The round Australian 50 cent coin was only ever minted for 1966. All subsequent Australian 50 cent coins are dodecagonal or 12 sided.