# How to Easily Find the Golden Ratio

**Posted:**June 2, 2011

**Filed under:**Uncategorized |

**Tags:**1.618, Constructions, Divine Ratio, golden cut, golden ratio, How to, Instructions 3 Comments

The Golden Ratio can be found quite easily using only a straight-edge and a compass. To underline the upcoming release of my book, Constructions, I am going to detail one of the lessons here; How to find the Golden Cut of a Line….

Begin with line **AB**. First construct a perpendicular from **B**.

Next, bisect line **AB**, and label it **C**.

Open the compass to measure **CB**. With the metal tip on **B**, cut an arc on the perpendicular at **B**. Label the intersection **D**.

Draw line **AD**. Without changing the compass, put the metal tip on **D** and cut an arc on **AD**. Label the intersection **E**.

Open the compass to measure **AE**. Put the metal tip on **A** and the pencil on **E**, then cut an arc to intersect line **AB**. Label it **F.**

**F** marks the Golden Cut of line **AB**.

This is just one of many constructions that will be covered in the instructional book, Constructions, due out in July 2011, and only available at www.chemicalmarriage.com

This is an excellent book.

[…] an example of the contents, you can gander at one of Aaron’s blog posts, How to Easily Find the Golden Ratio. Share this:EmailFacebookStumbleUponRedditDigg This was written by Librarian. Bookmark the […]

The book here http://ksvi.mff.cuni.cz/~holan/GoldenRatio/ contains ALL shortest costructions of the Golden Ratio.