There are no interactive problems for this subtopic
Outcomes
G.CO.C.10
Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.
G.GPE.B.4
Use coordinates to prove simple geometric theorems algebraically.
G.GPE.B.5
Prove the slope criteria for parallel and perpendicular lines and use them to solve geometric problems.