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-   -   why 30-60-90 triangle doesn't work for Peaky and Spike units (https://www.quiltingboard.com/main-f1/why-30-60-90-triangle-doesnt-work-peaky-spike-units-t22974.html)

bearisgray 07-19-2009 09:24 AM
1 Attachment(s)
maybe this drawing will help -

The Peaky and Spike triangles will make a square unit when sewn together. The height and base lengths finish the same.

The 30-60-90 triangles with a 60-60-60 triangle make a rectangle when sewn together. The height to base ratio is exactly square root of 3 to 2 - in numbers that is approximately 1.75 to 2

fred singer 06-14-2011 01:43 PM
fying geese


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