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The ratio (length : width) of the sides of a sheet of the A series of papers (of which A4 is one) is √2 : 1 ≈ 1.414 : 1
Alternatively, the ratio can be expressed as 1 : 1/√2 ≈ 1 : 0.707
A golden rectangle has sides in the ratio (length : width) of φ : 1 = (√5 + 1)/2 : 1 ≈ 1.618 : 1
Alternatively, the ratio can be expressed as 1 : 1/φ = 1 : 2/(√5 + 1) = 1 : (√5 - 1)/2 ≈ 1 : 0.618
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What are some objects that have a golden rectangle?
flowers, building, an A4 paper etc. mostly in nature.
What size paper is half of an a4 sheet?
Half of A4 is A5.
How long is an A4 sheet of paper?
An A4 sheet measures 210 x 297 mm. An A4 sheet of paper is the more common business and school size paper in most of the world, including Europe, whereas the 8½ x 11 inch sheet of paper is the more common business size in the USA. A4 is a little taller and narrower than a US 8½ by 11 inch sheet.
How many pieces of A4 fit into A3?
Two - A sheet of A4 paper is exactly half the size of a sheet of A3.
What size paper is double an A4 sheet?
A3.
