# Line

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 Cube definition and properties     Definition and properties of a cube. Math Open Reference Midpoint Theorem (Coordinate Geometry)     Finding the midpoint of a line segment given the coordinates of the endpoints Math Open Reference Online Scientific Calculator     A helpful scientific calculator that runs in your web browser window. Holt Online Learning Coordinate Look at Pythagorean Triples     The site gives a small applet exploring the relationship between circles centered at the origin, linear equations, and pythagorean triples. Pythagorean Triples Angle bisector     Definition of 'Angle Bisector' and a general discussion of bisection. Link to 'line bisector' Math Open Reference All about lines     This page discusses the different types of lines in geometry, including medians, bisectors, rays and more. NCTM Illuminations Collinear points     Definition of collinear points - three or more points that lie in a straight line Math Open Reference Geometry: Points, Lines, and Planes     Great (and short)Powerpoint Presentation on Points, Lines, and Planes. DocStoc Transversal     Definition of a transversal. A line that cuts across two or more (usually parallel) lines. Also perpendicular transversal Math Open Reference Protractor description     The Protractor described. Dual scales, baseline and origin. Math Open Reference
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