Apr 25, 2002, 09:28 PM Registered User Roxboro, NC U.S.A. Joined Sep 2000 714 Posts Got a bet going. What do you call this? Having a debate about what you call a triangular ruler. Has one corner at 90 degrees and the other at 45 degrees. I say it is called a triangle (simple huh?) My friend says it is called a speed square. I know speed squares are used in carpentry. I see this used in drafting a lot but have never heard a technical name before. Thanks for helping to settle this bet.
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 Apr 25, 2002, 09:36 PM Registered User Sacramento, CA Joined Sep 2001 90 Posts It's called a 45 degree triangle. The 'other' kind is a 30-60-90 degree triangle. Simple, huh?? Do you know what the other name for a (pair of) pliars is, you know the kind that has a slip joint? In the military, it's called a universal speed wrench (more trivia than you wanted to know).
 Apr 25, 2002, 09:56 PM Registered User Worcester, MA. Joined Nov 2001 1,408 Posts My \$0.02. If it's plastic and generally used on a drafting table, it's called a triangle; metal and used by carpenters, a speed square. Simple huh?
 Apr 25, 2002, 10:05 PM Tacoma, WA, USA United States, WA, Tacoma Joined Jun 2001 4,893 Posts My bro says it aint a speed square unless it's got an lip on it. With lip=speed square Without lip=triangle
 Apr 25, 2002, 10:09 PM Registered User Manassas, VA, USA Joined Feb 2002 651 Posts I've never heard it called a speed square before, always simply 'a square'.
 Apr 25, 2002, 10:31 PM Registered User Grand Prairie, Texas, USA Joined Mar 2000 829 Posts A carpenters "SQUARE" is not a triangle or a square either, for that matter, it's an "L" shape. I think that William A is correct with the lip-or- not value. My 1.5 cents
 Apr 25, 2002, 11:01 PM Tacoma, WA, USA United States, WA, Tacoma Joined Jun 2001 4,893 Posts .................................................. ................................................. Last edited by William A; Mar 03, 2014 at 03:20 PM.
 Apr 25, 2002, 11:05 PM Registered User Roxboro, NC U.S.A. Joined Sep 2000 714 Posts Thanks guys looks like I was closest to being right! I appreciate all of the quick responces. The lip part makes sense after you brought it up. I always said that the smartest folks on the net are right here
 Apr 26, 2002, 02:58 AM Single-task at best... Telford, UK Joined Feb 2000 7,634 Posts It's a set-square over here tim
 Apr 26, 2002, 05:48 AM Registered User Worcester, MA. Joined Nov 2001 1,408 Posts Good point William. I hadn't thought about the lip.
 Apr 26, 2002, 07:07 AM Registered User San Antonio, Texas USA Joined Feb 2001 1,108 Posts Guys,,,,,,guys,,,,,,,,,,,,it's a square.
 Apr 26, 2002, 07:29 AM aka: A.Roger Wilfong Novi, Michigan, United States Joined Jan 2001 2,858 Posts A square triangle? Isn't that an oxymoron?
Apr 26, 2002, 08:31 AM
Registered User
Worcester, MA.
Joined Nov 2001
1,408 Posts
Quote:
 Guys,,,,,,guys,,,,,,,,,,,,it's a square.
Only if it's like the one in the picture. If it's plastic, used for drafting it's a triangle.
Quote:
 Isn't that an oxymoron?
 Apr 26, 2002, 08:55 AM Registered User Marietta, GA Joined Jun 1999 43,324 Posts I have that exact same triangular square.. it's a sqaure, no doubt.. Now this is silly.. ..a
 Apr 26, 2002, 09:11 AM Sloping off.... United Kingdom, Aberdeen Joined Sep 2000 13,233 Posts That's a set square. Prime component of every schoolboy's geometry set along with the protractor, ruler and a set of compasses. http://www.technologyindex.com/educa..._sq/set_sq.htm Brian

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