If six equilateral triangles are placed side by side so that only two sides of each triangle touch one of the other triangles what shape is formed?

We are thinking circle?

2 answers

But a circle is curved, and triangles has straight edges.

http://www.google.com/search?q=hexagon&biw=1517&bih=714&tbm=isch&imgil=ER57nZqRDLf9pM%253A%253Bhttps%253A%252F%252Fencrypted-tbn3.gstatic.com%252Fimages%253Fq%253Dtbn%253AANd9GcTtWry8H8P4V1cybFj0gg_OepVnXiyx8mXligDSLHnKoOJkVuPoSw%253B1566%253B1360%253BFkyOLSj72oxrFM%253Bhttp%25253A%25252F%25252Fkathykwylie.com%25252F2010%25252F10%25252Fgeometric-shapes-in-quilts-hexagons%25252F&source=iu&usg=__cDfI6sdw4xJQWCw2sMSSoHK2siA%3D&sa=X&ei=scJSU87dO-je2QWa_4H4Ag&ved=0CJABEP4dMA4#facrc=_&imgdii=_&imgrc=ER57nZqRDLf9pM%253A%3BFkyOLSj72oxrFM%3Bhttp%253A%252F%252Fwww.kathykwylie.com%252Fwp-content%252Fuploads%252F2010%252F10%252FHexagon-Six-Triangles.jpg%3Bhttp%253A%252F%252Fkathykwylie.com%252F2010%252F10%252Fgeometric-shapes-in-quilts-hexagons%252F%3B1566%3B1360
* a circle has . . .