CH2 Common Definitions in Proofs

Front

What information is required to prove triangles are congruent?

Back

The information required includes side lengths and angle measures that satisfy congruence criteria such as SSS, SAS, ASA, AAS, or HL.

Front

What are ∠3 and ∠6 if they are alternate interior angles?

Back

Alternate interior angles are pairs of angles formed when a transversal crosses two parallel lines, and they are equal in measure.

Front

What is the definition of complementary angles?

Back

Front

Back

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect to form right angles (90 degrees).

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect, and they are always equal.

Front

What is the definition of supplementary angles?

Back

Front

What is the definition of congruent segments?

Back

Congruent segments are segments that have the same length.

Front

What is the definition of an angle bisector?

Back

An angle bisector is a ray that divides an angle into two equal parts.

Front

What is the definition of a midpoint?

Back

A midpoint is a point that divides a segment into two equal segments.