Math Vocab Flashcards
Parallel lines
Two lines in the same plane that do not intersect
Perpendicular lines
Two lines that intersect in a plane to form a right angle
Transversal
A line that intersects two or more lines that form eight angles
Interior angles
Lie inside the lines
Exterior lines
Lie outside the lines
Alternate exterior angles
Angles that lie on opposite sides of the transversal
Alternate interior angles
Angles that lie on opposite sides of the transversal
Corresponding angles
Angles that are in the same position on two lines in relation to the transversal
Inductive reasoning
The presses of making a conjecture after observing several examples
Deductive reasoning
Uses fact, rules, definitions, or laws to make conjectures from given situations
Proof
A logical argument where each statement is justified by a reason
Paragraph proof
Writing a paragraph to explain why a conjecture is true
Informal proof
Writing a paragraph to explain why a come true is true
Two-column proof
Also called formal proof contains statements and reasons organized in two columns
Theorem
Once a statement or conjecture has been proven it can be used as a reason to justify statements in other proofs
