Posted by Sarah on Monday, November 14, 2011 at 7:42pm.
A store's sign is the shape of an equilateral triangle. One side measures 21 inches. What is the length of each of the other two sides?

Math  bobpursley, Monday, November 14, 2011 at 7:47pm
Equilaterial: all sides equal.

Math  Ms. Sue, Monday, November 14, 2011 at 7:47pm
http://www.mathsisfun.com/triangle.html

Math  khrys, Monday, November 14, 2011 at 7:49pm
Thank you very much...

Math  Ms. Sue, Monday, November 14, 2011 at 7:50pm
You're welcome.
Please, though, use the same name for all of your posts.
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