Friday 13th June 2025
Difficulty: Easy
Paper sizes (Quiz #938)
Photo by Brandi Redd (Unsplash)
1. What is the ratio of length to width of A4 paper?
2. Which size in the A series has an area of almost exactly 1m²?
3. The USA is one of the few countries that does not use the international ISO 216 standard (A3, A4, etc.). Instead, their sizes are based on traditional formats with arbitrary aspect ratios. For example, "legal" paper measures 8.5 x 14 inches (216 x 356 mm). What size is obtained by folding "legal" paper in half?
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