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From: dje@5941ux.UUCP (D.Ellis)
Newsgroups: net.math
Subject: Re: And another high-school problem.
Message-ID: <421@5941ux.UUCP>
Date: Thu, 29-Sep-83 08:46:59 EDT
Article-I.D.: 5941ux.421
Posted: Thu Sep 29 08:46:59 1983
Date-Received: Sun, 2-Oct-83 04:52:05 EDT
References: ecn-ed.219
Lines: 12

Something is wrong in a posted problem:  

	Here's another problem I heard as a 9th grader. If somebody
	solved it in 5 minutes, please let me know. I didn't, and neither di
	my teacher, friends, cousins and others who were shown the problem.

	Given an isocele triangle ABC with A = 20 degrees, B = C = 80 deg.
	On AB take a point D such that AD = BC. Find the angle ABD.
	
		Hao-Nhien Vu (pur-ee!norris)

If D is on AB, then angle ABD is zero degrees.  Do you mean angle ACD?