4.6.A
Identify points, lines, line segments, rays, angles, and perpendicular and parallel lines.
Khan Academy ResourcesLines, line segments, and rays reviewAngle basics reviewQuadrilaterals reviewParallel and perpendicular lines reviewAngle types reviewIdentify points, lines, line segments, rays, and anglesAngle typesRecognize angles in figuresName anglesIdentify parallel and perpendicular linesAngle basicsLines, line segments, & raysAngles: introductionParallel & perpendicular linesTerms & labels in geometryRecognizing anglesNaming anglesClassifying shapes by line and angles typesParallel & perpendicular lines introDrawing parallel line segments
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