Definition of a 30-60-90 triangle along with the ratio of its sides.
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Math Open Reference
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Demonstrates Pythagorean Theorem using interactive exercises and examples.
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Principles and Standards for School Mathematics
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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Practice using Pythagorean Theorem to solve for the third side of a right triangle. Answers included.
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Math.com
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This tutorial works with all the special relationships in right triangles, including the pythagorean theorem, geometric means, and special right triangles.
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Think Quest
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The worksheets below can be used as part of extra math homework. These geometry worksheets are free and easily printable. They cover typical school work from grade 4 through 8. They include questions on polygons, 3D objects, angles, and calculations of area, volume, etc.
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Helping With Math.com
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A page with links for properties of circles and different types of polygons. Each link has great visuals with clear markings, definitions, and formulas.
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Cool Math
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Calculate the perimeter and area for each triangle. Answers included.
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Math-Drills.com
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