G.LA: Lines & Angles

Lines & Angles

G.LA.1Use precise definitions and standard geometric notation for angles, perpendicular lines, parallel lines, and line segments based on the undefined notions of point, line, and distance along a line.G.LA.2Make formal geometric constructions with a variety of tools and methods including:G.LA.3Determine the point that cuts a line segment into a specified ratio on a number line and a coordinate plane, including finding the midpoint.G.LA.4Derive the distance and midpoint formulas and use the formulas, including the slope formula, to verify geometric relationships on a coordinate plane.G.LA.5Prove and apply slope criteria of parallel and perpendicular lines to solve problems.G.LA.6Write an equation of a line that is parallel or perpendicular to a given line and passing through a given point.G.LA.7Prove and apply theorems about lines and angles including:
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