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Brief Description: This is a computer animation that questions the "truth" about a simple mathematical fact -- the sum of the interior angles of a triangle equals 180 degrees. If this fact is not beyond refute, what is?
Parents, public school students, and educators working for non-profit schools or organizations are welcome to link to this interactive educational web resource at no cost on the condition that each registers such use with Lloyd Rieber at firstname.lastname@example.org. Those who register will be notified in the event that this web address changes. Commercial vendors, corporate trainers, and others who are part of for-profit organizations should contact Lloyd Rieber for licensing arrangements.