Square metres. Square centimetres for small objects like a sheet of paper, square kilometres for a town or lake.
Chat with our AI personalities
A square nanometer.
square metres.
Square metre
Square centimetres (cm2).
To calculate the area of a unit circle you should use the equation x2+y2=1. The unit circle equal area of 1. You can find out more information on the mathisfun website for deeper explanation.