Intro to Proofs Geometry

Determine the next reason in the proof.

Determine the next reason in the proof.

Determine the next reason in the proof.

Determine the next reason in the proof.

Determine the next reason in the proof.

Given segment BC with point x on the segment between points B and C.  What is the best choice for the missing reason?

• Definition of segment congruence

• Definition of a midpoint

• Definition of a segment

• Segment addition postulate

What is the reason?

• Reflexive thm of congruence

• Symmetric thm of congruence

• Definition of congruence

• Definition of equality

What is the reason?

• Definition of adjacent angles

• Definition of angle congruence

• Definition of angle bisectors

• Definition of a midpoint

Name the property of equality or congruence that justifies going from the first statement to the second statement.

• Reflexive Property of Equality

• Symmetric Property of Equality

• Symmetric Property of Congruence

• Reflexive Property of Congruence

What is the relationship between <EAD and <DAC?

• They are a linear pair.

• They are complementary.

• They are supplementary.

• They are adjacent.