[net.math] High-School Prob: oops !

ecn-ec:ecn-pc:ecn-ed:vu@pur-ee.UUCP (Hao-Nhien Q Vu) (09/30/83)

I received mail calling my attention to the fact that ADB are co-linear.
Yeah, I meant : Find angle ACD. Sorry.

Hao-Nhien Vu.