Intro to Proofs

Front

What is the Transitive Property of Equality?

Back

If a = b and b = c, then a = c.

Front

What is the Symmetric Property of Equality?

Back

If a = b, then b = a.

Front

What is the Reflexive Property of Equality?

Back

For any number a, a = a.

Front

What does it mean for angles to be congruent?

Back

Two angles are congruent if they have the same measure.

Front

What is the definition of a right angle?

Back

A right angle measures 90 degrees.

Front

If ∠EHF is a right angle and m∠BHE=140°, what is m∠1?

Back

m∠1 = 40°.

Front

What is the Segment Addition Postulate?

Back

If point B is between points A and C, then AB + BC = AC.

Front

What is the definition of a midpoint?

Back

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

Front

What is the Reflexive Theorem of Angle Congruence?

Back

Any angle is congruent to itself.

Front

What is the Symmetric Theorem of Angle Congruence?

Back

If angle A is congruent to angle B, then angle B is congruent to angle A.