[Icehouse] Re:

[Timothy Hunt]

> Base = (Base of X-1) + 0.21875
> Height = ???
> (I can't find out how to derive the angle from Height and Base, and so
>  I can not find how to use some trig function of that angle with only
>  the Base, to determine the Height after the above simple addition.
>  Anyone here know all that stuff?)

If you mark a Normal line on the base through the pyramid's top, you
have a right angle triangle with a base of B/2, and the top angle of
theta/2.

so the formula you need is
tan(theta/2) = B/(2H)

theta = 2 arctan(B/2H)

Timothy