3 ms·
The A size formats are based around A0 being 1m² in area, the B size formats are based around the short edge of B0 being 1m long. The aspect ratio of both A & B
by tankenmate 12y ago
The A size formats are based around A0 being 1m² in area, the B size formats are based around the short edge of B0 being 1m long. The aspect ratio of both A & B sizes are √2.