



 
Hi Sash. Take a look at this explanation from Penny which tells you how to make patterns for cones. In your case, you will need to cut a sector of a circle (like the bottom diagram on that page), where the radius equals your slant height and the angle at the point is 86.5 degrees. Here's how I calculated that: Angle = 360 x (circumference of cone base / circumference of circle) Stephen La Rocque.>  


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