Definition: A triangle used to fill in the jagged edges left around the outer perimeter of a quilt where blocks are arranged on-point.
The straight grain runs parallel to a setting triangle's longest side.
Setting Triangle
By Janet Wickell, About.com
Side setting triangles are produced by cutting a square twice diagonally, creating four triangles with stright grain on their longest edges.
©Janet WickellMore Quilting Terms
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