Question

What is the meaning of $a_{0}$?

Answer 1

A0 (uncountable) A standard paper size defined by ISO 216 to have approximate dimensions 1189 × 841 mm (1189.21 × 840.90 mm) and thus an area of 1 square metre.

Answer 2

Answer:

A standard paper size defined by ISO 216 to have approximate dimensions 1189 × 841 mm (1189.21 × 840.90 mm) and thus an area of 1 square metre.

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