C10 size in mm is 28x40
The aspect ratio of an C10 paper is 1:1.43,The area of an C10 paper is 1120 mm², Perimeter of an C10 paper is 136 mm, Diagonal line of an C10 paper is 48.83 mmMillimeter is a unit of length and a unit of rainfall, abbreviated in English as mm. 1mm=0.1cm=0.01dm=0.001m=0.000001km=1 000μm=1 000 000nm