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Mr. Kerai's Advanced Geometry and Trigonometry Class
Wednesday, April 22, 2009
Quiz on Friday, April 24th
You will be quizzed on whatever we have covered in trigonometry and also on our work with circles. You can use this post to compare answers for the questions you did in class involving right triangles.
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The School of Athens
Euclid, as imagined by Raphael in this detail from The School of Athens.
Jamshed Al-Kashi
Al-Kashi was one of the greatest mathematicians of the 15th century, calculating the sin(1*) correct to 16 decimal places.
Al-Beruni
The 11th century scientist and philosopher managed to estimate the radius of the earth using a very creative method that employed trigonometry.
Reference Websites
History of Mathematics Archive
Basic Geometry Terms
Mathworld - A Great Mathematical Search Engine
Websites on Pentagon Constructions
The Golden Section - A Property of the Pentagon
Euclid's Construction
Euclid's Construction from Google Books
Alternative Construction and Proof
Proof Relying on the Golden Ratio
Another Consruction Website (Found by Victoria)
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Homework due 05/01/09
Homework due 04/28/09
Homework due 04/27/09
Quiz on Friday, April 24th
Assignment due 04/20/09
Sine Half-Angle Formula Discussion Post
Sine Addition Law Discussion Post
Homework due 04/14/09
Homework due 04/14/09
Homework due 04/13/09
Recommended Practice Questions (continued from class)
Take-Home Test Extension Granted!
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