what angle is this
 

I saw this on pinterest and I am trying to figure out the size. I am using the 60 degree tri rec ruler but three don't equal half. Also I am trying the tell the strip size I tried 2 1/2 for the bottom two and 1 1/2 for the center but that doesn't allow to flip the ruler. Any ideas?
http://www.pinterest.com/pin/21462535700051487/

As far as I can tell, those are all equilateral triangles (all sides same length, all angles the same (=60°)). Or am I wrong?

You could use three different fabrics, then you can flip the ruler (but the middle would be one colour all around). Or four strips instead of three.

My friend made one using a jelly roll and additional background. Therefore stres as Cathy says were 21/2" joined together. The triangle would be 360 divide by 6 ( number of sections ) makes 60*
An equilateral triangle ruler needed.

I could be wrong but I didn't think the tri rec ruler was a 60 degree triangle? http://softexpressions.com/software/...zQuilt.php#tri

Could you maybe try cutting a 60 degree triangle using your straight ruler and compare the triangles? http://quilting.about.com/od/rotaryc...g_shapes_5.htm

Its a great pattern :)

THE TRI REC RULER IS NOT A 60 DEGREE RULER!!! Sorry, didn't mean to shout! The picture in the link is made using a 60 degree. YOu need to get a different ruler, or, you can use the 60 degree mark on your 6X24" ruler. Looking at the size of the triangles in the quilt, however, I think it's going to be much easier to get the correct ruler. Creative Grids has a 12" version.

I think it is a 60 degree. Look at this table mat I found. The quilt is just bigger

http://lovelaughquilt.blogspot.com/2...y-hexagon.html

I have seen this pattern before being the shape of a hexagon. The pieces are sewn in strips, then cut with a 60 degree triangle ruler. 60 x 6=360 degrees. You have to be very accurate with your seam allowance so that the seams will match. The width of the strip depends on how large you want to make your block.

It is done with a sixty degree triangle ruler. My ruler is the creative grid one. The patterns I have use jelly rolls. I have a few books on these. Off of the top of my head one is called Sizzling Sixties by Anka's Treasures.

I made one similar called the Merry Go Round. 60 degrees like everyone says.

I would cut the strips all the same size. The center will come out much smaller due to the angle that takes up more seam allowance when you put them together. Try it with some scrap fabric to see if it is the look you are aiming at.