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Cut triangles with long sides on the straight-of-grain for use in Broken Dishes and other blocks and for set-in side triangles.



Before cutting strips, fold your fabric once parallel to the selvedge edges, with selvedge edges together. Then fold again in the same direction. Trim along one side of the folded fabric perpendicular to the selvedge edge to square it up.



Determine the finished triangle base for the triangles you need.

diagram of triangle indicating base of triangle

Find the number for the finished triangle base size along either side of the tool. The number will be bounded by dashed lines indicating the finished triangle. Look in the center for the number below the dashed line. This number is the strip width you need to cut. Here, for a finished triangle base of 3", you will need to cut 2" strips.

schematic of how use Easy Angle measure

To cut triangles, line up the line underneath the strip width number with the bottom of the strip. Cut on either side of the tool.

schematic of first cut using Companion Angle to make fabric triangle pieces

Flip the tool over, and line up the strip width number line with the top of the strip, and the edge of the strip along the edge of the tool. Cut along the other edge of the tool. Continue cutting with these two steps for more triangles.

schematic of subsequent cuts using Companion Angle to make fabric triangle pieces


This tool can be used to cut 45º acute angle trapezoids as well. Simply follow the same cutting steps based on the trapezoid finished based width. The strip width must be determined to adding 1/2" to the finished trapezoid height.



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