Mastering lines, planes, points, segments, angles, segment and angle bisectors, angle pair relationships, perimeters, circumference and areas, statements about segments and angles, perpendicular lines, parallel lines, transversal lines, congruent triangles, isosceles, equilateral and right triangles, coordinate proof, bisectors of a triangle, medians, mid segment theorem, inequalities in one triangle, reflections, rotations, translations, ratios, similar polygons, similar triangles, proportions, Pythagorean theorem, trigonometric ratios, right triangles rules, arcs and chords, angle relationships, areas of polygons, solids, surface areas, volumes, cylinders, prisms, pyramids, spheres, cones.