Ukuran Kertas A0-A8

In less visual terms, any sheet of A-series paper is as long as the next-larger sheet is wide and half as wide as the next-larger sheet is long. To wit:
Sheet name     Width (mm)     Length (mm)     

A0     841     1189
A1     594     841
A2     420     594
A3     297     420
A4     210     297
A5     148     210
A6     105     148
A7     74     105
A8     52     75