Explanation of acute angles
Math is Fun
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This page goes through the definitions and then some practice problems for identifying them
Homeschool Math
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In this Early Edge video lesson, you'll learn more about Equilateral, Isoceles and Scalene Triangles, so you can be successful when you take on high-school Math & Geometry.
The Princeton Review
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In this Early Edge video lesson, you'll learn more about Triangles, so you can be successful when you take on high-school Math & Geometry.
The Princeton Review
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Similar triangles - two sides in same proportion, included angle the same. SAS
Math Open Reference
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Use your knowledge of vertical angles and supplementary angles to find the measurements for all angles. Answers included.
Math-Drills.com
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Definition of a subtended angle - the angle created by an object at a given external point
Math Open Reference
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Definition of a segment of a circle.
Math Open Reference
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Definition and properties of a secant
Math Open Reference
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Definition and properties of scalene triangles
Math Open Reference
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