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?

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

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

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

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**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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