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 MollieSue 12-21-2012 02:37 PM

Figuring 1/4 Sq Triangle Size Help Please

I'm finally starting to sew again, making an applique butterfly baby quilt.

The directions however are kind of strange... Was to cut 10 1/2" strips, then making 10 1/2" squares, and then getting 4 triangles (template) out of one square - but the template that was included is 6 3/4" on the short side - no way could you get 4 of them from one 10 1/2" square. ??

The pattern is 4 1/4 square triangles sewn together to make one block, and then the applique square block is 9 3/4" square.

So I need to know the size I need of a 1/4 square triangle (using 4 of them) that be the same size as a 9 3/4" block. I just can't cut the 10 1/2" square into 4 triangles, or they wouldn't be big enough!

I hope this is clear enough for someone to figure out what I'm asking! lol!!!!

 dunster 12-21-2012 02:50 PM

To figure the size of the square used to cut a QST, you add 1.25" to the finished size of the block you want to create. If your block's finished size is 9.75", you would need a square that is 11". I assume that your 9.75" block is unfinished, so finished it would be 9.25", and adding 1.25" you get 10.5", which is what the pattern calls for.

 dcamarote 12-21-2012 02:55 PM

thanks for the link. good info for me. I always wondered how you figured the size, especially without a pattern.

 MollieSue 12-21-2012 03:34 PM

Thank you Dunster! How do I get the 4 triangles out of the 10.5 square though? It would be too small to use thier template.... Just got it into quarters?
Yes, my applique 'unfinished' block is 9 3/4".
Geez - can you tell it's been awhile since I did any of this? lol!!! Plus, I'm clueless when it comes to any math.

 dunster 12-21-2012 03:51 PM

Cut it on each diagonal as it's shown in the link. Each triangle should be the size of their template.

 MollieSue 12-21-2012 04:13 PM

Ok, I'll give it a try.... Laying their template on the 10.5" square though, I 'd only be able to get 2 maybe. I'll go do it now! :)

 Jan in VA 12-21-2012 07:27 PM

1 Attachment(s)
Look through this tutorial and see if it doesn't help you with triangle issues including these.

Jan in VA

 dunster 12-21-2012 07:53 PM

Originally Posted by MollieSue (Post 5733674)
Ok, I'll give it a try.... Laying their template on the 10.5" square though, I 'd only be able to get 2 maybe. I'll go do it now! :)

You will cut without the template, but if you place it so that its long side is along the edge of the square, you will see how 4 of them will fit (each with its long side along the edge of the square).

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