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# Figuring 1/4 Sq Triangle Size Help Please

12-21-2012, 02:37 PM
#1
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Join Date: Feb 2009
Location: MI
Posts: 2,527
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!!!!
12-21-2012, 02:50 PM
#2
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Join Date: Mar 2009
Location: Lake Elsinore, CA
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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.

12-21-2012, 02:55 PM
#3
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Join Date: Jan 2010
Location: Delaware County, SW of Phila.
Posts: 610

thanks for the link. good info for me. I always wondered how you figured the size, especially without a pattern.
12-21-2012, 03:34 PM
#4
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Join Date: Feb 2009
Location: MI
Posts: 2,527

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.
12-21-2012, 03:51 PM
#5
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Cut it on each diagonal as it's shown in the link. Each triangle should be the size of their template.
12-21-2012, 04:13 PM
#6
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Location: MI
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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!
12-21-2012, 07:27 PM
#7
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Join Date: Aug 2010
Location: Piedmont Virginia in the Foothills of the Blue Ridge Mtns.
Posts: 8,562

Look through this tutorial and see if it doesn't help you with triangle issues including these.

Jan in VA
Attached Files
Using_Triangles.pdf (55.6 KB, 119 views)
12-21-2012, 07:53 PM
#8
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Originally Posted by MollieSue
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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