Who is considered the 'Father of Geometry'?
What is Playfair's axiom, the common modern form of Euclid's Parallel Postulate?
What is a postulate (axiom)?
What is a theorem?
What are vertical angles?
What are supplementary angles?
What are complementary angles?
What is the sum of the interior angles of a triangle?
What is the sum of the interior angles of a quadrilateral?
What is the formula for the sum of interior angles of an n-sided polygon?
When two parallel lines are cut by a transversal, what is true of corresponding angles?
Hint: They sit in the same relative position at each intersection
When two parallel lines are cut by a transversal, what is true of alternate interior angles?
Hint: They lie between the parallel lines, on opposite sides of the transversal