On Thu, 30 Dec 2004 01:25:54 GMT, Phisherman wrote:

On 27 Dec 2004 11:20:45 -0800, wrote:

I need to figure out the taper angle on a piece of wood. Can someone
help me out?? The piece is 18 7/16" long. The top is 1 11/16" wide and
the bottom is 2 3/16" wide. What angle would I need to cut that?

Thanks

A diagram would certainly clarify, but depending on the interpretation
of the "long" measurement given two calculations are provided.

For a trapezoid of height 18 7/16", the angle between the sloped sides
is

(tan-1(0.25/18.4375))*2 ~= 1.5536886 degrees


For a trapezoid of side length is 18 7/16", the angle between the
sloped sides is

(sin-1(0.25/18.4375))*2 ~= 1.5538314 degrees

If you wanted to get really fussy, you might have included the
diagonal? You raise a good point, but I'm pretty sure he meant the
perpendicular distance.