300 mm
The 1966 Australian 50 cent coin has a diameter of 31.5mm. The area of one side of the coin is 779.3 square mm.
Yes, the 10 cent coin is smaller. The Australian 10 cent coin is 23.60 mm in diameter. The Australian 20 cent coin is 28.52 mm in diameter.
on the Australian 20 cent coin it the platypus
The Australian 5 cent coin has an echidna on it?
Australian five-cent coin was created in 1966.
Australian twenty-cent coin was created in 1966.
There is no flower on the reverse of an Australian 50 cent coin.
Such a coin does not exist. The first Australian 10 cent coin was issued in 1966.
The Australian 20 cent coin features a platypus on the reverse.
The lyrebird is on an Australian ten cent coin.
Such a coin does not exist. The Australian 2 cent coin was first issued in February 1966.
The volume of the dodecagonal Australian 50 cent coin is about 2,338 cubic mm.