RSS for user "aseldow: mathematics + geometry"-
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Using only elementary geometry, determine angle x. Provide a step-by-step proof. You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.). You may not use more advanced trigonomery, such as the law of sines, the law of cosines, etc. There is a review of elementary geometry below. -
1voteNow you can instantly draw the golden sections, or other divine proportions, as an aid to composition. This plugin can draw fibonacci sequences such as the golden sections, golden spiral and the golden triangles. In addition it also can draw the harmonious triangles and the rule of thirds - based on composition through identity. The best way to use the plugin is to output the drawing to a transparent top layer you can move around for cropping.
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2voteThis is fairly hilarious to math geeks. It assigns a piano key with a value and plays "pi" to 1,000 places. It's quite beautiful ; )
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1voteWow! Java applets to assist with geometry!!!!
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Choose the number of polygons to approximate the area of a circle. -
1voteThis is a great geometry resource for math teachers. I worked hard on these!
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1voteThis is meant to accompany the the nets handout listed under the same tags.
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1voteGeometry resource with a ton of information. Starting point for lessons and extra help in geometry.
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1voteGreat *free* math resources for teachers/students.
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