History of Mathematics : Who Invented the Protractor?

3,657 views · Published 3 January 2009 · 1:32 · Indexed 22 September 2026

Channel: ehow · 2009 · Howto & Style

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The protractor was invented several thousand years before a more complex version was developed in the 1800s. Find out who invented the protractor with tips from a mathematics instructor in this free video on math history.

Expert: Steve Jones
Contact: www.marlixint.com
Bio: Steve Jones is an experienced mathematics and science teacher.
Filmmaker: Paul Volniansky

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