A3 paper size in cm

What is A3 paper size in cm ?

A3 size in cm is 29.7x42

The aspect ratio of an A3 paper is 1:1.41,The area of an A3 paper is 124740 mm², Perimeter of an A3 paper is 1434 mm or 143.4 cm, Diagonal line of an A3 paper is 514.4 mm or 51.44 cm

Centimeter is a unit of length measurement, equal to one hundredth of a meter, the English symbol that is abbreviated as: cm., 1 cm = 1/100 m. 1cm = 10mm = 0.1dm = 0.01m