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#1 2012-05-18 03:05:12
- Ummarah
- Member
- Registered: 2012-05-18
- Posts: 1
geometry
what is the meaning of protractor ? why we call it protractor? what is tha reason behind its name?
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#2 2012-05-18 03:11:05
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,803
Re: geometry
hi Ummarah
Welcome to the forum!
Well I didn't know this so I looked it up on Dictionary.com
They say it's from the word 'protract', one meaning being "to plot and draw".
So now I suppose you'll be wanting to know where the word "protract" comes from ....... ad infinitum.
Well, that's very mathematical isn't it. 
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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