Simply put, a rectangle is the easiest shape to cut versus some other layout such as circles or pentagons. Bills are printed on large sheets of paper in a grid layout, which allows them to be cut apart mechanically with no waste paper.
As far as being rectangular versus square, a rectangular layout means it's easier to orient bills in stacks because they can only be oriented in one of two directions as opposed to four, which simplifies sorting and counting.
The collective noun for banknotes is a wad of banknotes.
A rectangular prism.
Rectangular pyramid.
A rectangular prism (8).
Plastic banknotes are more durable and more waterproof than paper banknotes, as well as being harder to counterfeit.
Triangular prism - 6 Rectangular prism - 8 Rectangular pyramid - 5 Square pyramid - 5 Answer: Rectangular prism
Banknotes normally last for 1 to 3 years.
No
Plastic banknotes were invented in Australia by the Reserve Bank of Australia and the CSIRO.
currency or wad
a rectangular pyamid
See the link to the Bank of England.