An introduction the the concept of solving a triangle.
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Math Open Reference
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Formula and description of the perimeter of a triangle.
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Math Open Reference
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Definition and properties of the midsegment of a triangle
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Math Open Reference
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Properties of the interior angles of a triangle
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Math Open Reference
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Any side of a triangle is always shorter than the sum of the other two sides.
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Math Open Reference
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Definition and properties of the incircle of a triangle
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Math Open Reference
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The definition and characteristics of the exterior angles of triangles
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Math Open Reference
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Circumcircle of a triangle. Definition and properties with interactive applet.
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Math Open Reference
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An overview of the various centers of a triangle
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Math Open Reference
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Demonstration that a triangle with fixed perimeter does not have a constant area.
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Math Open Reference
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