There were some interesting problems posted recently. They involve a ladder touching a 1x1x1 box and a wall. I'd love to give them in my secondary math methods course as brainstorming activities, but (and I have to be honest here, even though it hurts) I erased the answer posts and I am having difficulty getting a solution by myself that does not involve fourth degree polynomials.
If you have a solution to either of the problems listed below, please send them to me via e-mail (firstname.lastname@example.org). It would be greatly appreciated.
Problem 1: 4m ladder, 1x1x1m box. How high up the wall does the ladder touch?
Problem 2: The ladder touches the wall 7 (?) meters off the ground. How long is the ladder?
Glenn J. Ponas, gsa, math ed E-Mail: email@example.com University of Pittsburgh Address: 4H56 Forbes Quadrangle DIL, School of Education Pittsburgh, PA 15260 (on loan from Pittsburgh Public Schools) Phone: (412) 624-7246
From usenet Mon Sep 20 17:13 PD 1993 Path: forum.swarthmore.edu!uunet!cdp!doversherhs From: Dover-Sherborn High School <firstname.lastname@example.org> Newsgroups: geometry.pre-college Date: 20 Sep 93 17:13 PDT Subject: Used Serra Books? Message-ID: <email@example.com> X-APC-HostID: 1 Sender: Notesfile to Usenet Gateway <firstname.lastname@example.org> Lines: 16
serra book requestTEXTMSWD5(>zy(>|Fw4A friend of mine suggested that one person's garbage is another erson's treasure. I hope she is right. I am looking for used or damaged copies of DISCOVERING EOMETRY by Michael Serra (Key Curriculum Press) that someone as lying around or is about to throw out. I need a minimum of15 nd would be interested in as many as 60. The math department t my high school is all for the switch to the Serra book, but has ecently bought new geometry books -- therefore it will be 2-3 ears before the next round of purchases. I can't wait that long. Please let me know if you can help! Thanks!! Keith Grove email@example.com or firstname.lastname@example.org