Flashcard 3.2 - Geometric Proofs

Front

What does the symbol \(\cong\) mean?

Back

Congruent

Front

What is the definition of an angle bisector?

Back

A point or line that divides an angle into two congruent halves.

Front

What is the Reflexive Property of Equality (POE)?

Back

If AB = AB, then it is reflexive.

Front

What does it mean to bisect a segment or an angle?

Back

To split it into 2 equal parts.

Front

When might you use the definition of a right angle in a geometric proof?

Back

To justify the statement that a right angle measures 90 degrees.

Front

What is the definition of congruent figures?

Back

Figures that have the same shape and size.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of vertical angles?

Back

Angles opposite each other when two lines intersect; they are congruent.

Front

What is the definition of a transversal?

Back

A line that intersects two or more lines at different points.