Hi!

I posted this elsewhere, but it isn't getting through to these
regions.(I believe Mr Rubin is working on it). Excuse any double
posting therefore, but wrong information is being used here.

The formula for the area of circle is (to put it in English) pi R
squared, where R is the radius.
In formula terms it is pi()*(C3/2)^2 where C3 holds the diameter of the
circle.

3=2E14 as a value for pi() is fine for this purpose.

=3Dif(b3=3D"rectangle",c3*d3,3.14*(c3=AD/2)^2) would do the job you asked
for.

Alf