MATH THS – Standard Geometry Content Vocabulary: acute angles congruent angles congruent segments conjecture counterexample distance line measure of an angle obtuse angle plane point postulate ray right angle segment sides of an angle straight angle vertex Patterns Points, Lines, Planes Angles and Their Measures Basics of Geometry Sketching Intersections Segments and Their Graphs Essential Understandings Investigate relationships among plane and solid geometric figures using geometric models, constructions, and tools Verify geometric relationships using algebra, coordinate geometry, and transformations