Semester 1
1 POINT
point, endpoint, vertex, center, median, bisector, circumcenter, orthocenter, centroid, incenter,
2 POINTS: LINE
lines, line segments, rays, edges, radius, diameter, median, bisector, altitude, perpendicular bisector, chord, tangent,
3 POINTS: TWO LINES (COMMON ENDPOINT, ANGLES)
central, right, obtuse, acute,
4 POINTS: TWO LINES (NONCOMMON ENDPOINT, LINES)
vertical, perpendicular, parallel
MORE THAN 4 POINTS:
THREE LINES (2 PARALLEL AND ONE TRANSVERSAL)
alternate, exterior, interior, same-sided, corresponding,
FOUR LINES (2 OR 3 PARALLEL/PERPENDICULAR LINES AND TRANSVERSAL) representation of EVERYTHING
Three lines create a closed shape: TRIANGLE
Triangle Angle Sum Theorem
Triangle Exterior Angle Theorem
Types of Triangles
Congruent Triangles: SSS, SAS, ASA, AAS, HL