Question

What is the golden ratio?

Answer 1

Define the golden ratio.

A golden ratio is a unique number that is about$1.618$.
The Greek letter $\varnothing$ represents the golden ratio or golden mean. When the ratio of two numbers equals the ratio of their sum to the greater of the two numbers, the golden ratio is formed. $\varnothing =\frac{1+\sqrt{5}}{2}\approx 1.618$

Hence, a golden ratio is a unique number that is about $1.618$.