Geometry Proof Practice

If two angles are congruent then we know that the measures of these angles equal each other because the...

• Definition of an Angle Bisector

• Angle Congruence Theorem

• CPCF Theorem

• Corresponding Angles Postulate

Tags

CCSS.8.G.A.2

If we know that two lines are parallel then we can conclude that their corresponding angles are equal because the....

• Angle Congruence Theorem

• Transitive Property

• Corresponding Angles Postulate

Tags

CCSS.8.G.A.5

If ΔABC ≅ ΔHIJ, then we know that ∠A is congruent to ∠H because the.....

• CPCF Theorem

• Angle Congruence Theorem

• Symmetric Property

• Definition Of Congruence

Tags

CCSS.HSG.CO.B.7

If t=m and m=b, then we know that t=b because the.....

• Symmetric Property

• Transitive Property

• Definition of a Midpoint

• Reflexive Property

Tags

CCSS.HSG.CO.C.10

M is the midpoint of segment PQ,

we know that segment PM = segment MQ,

because the...

• Definition of a Midpoint

• Segment Congruence Theorem

• CPCF Theorem

Tags

CCSS.HSG.CO.C.10

We know that the m∠1 = m∠3, because the......

• Definition of Congruence

• Angle Congruence Theorem

• Vertical Angles Theorem

• Linear Pair Theorem

Tags

CCSS.7.G.B.5

We know that ∠1 & ∠4 are supplementary because the...

• Linear Pair Theorem

• Definition of Supplementary Angles

• Definition of Complimentary Angles

Tags

CCSS.7.G.B.5

Given: k∥l,

therefore m∠3 = m∠7,

because the

• Corresponding Angles Postulate

• Angle Congruence Theorem

• Definition of Congruence

• Definition of an Angle Bisector

Tags

CCSS.8.G.A.5

Given: segment AB ≅ CD,

therefore AB = CD,

because the.......

• Reflexive Property

• Segment Congruence Theorem

• CPCF Theorem

• Definition of a Midpoint

Tags

CCSS.HSG.SRT.B.5

If ΔEFG ≅ ΔTUV, then segment FG ≅ segment UV, because the.....

• CPCF Theorem

• Segment Congruence Theorem

• Transitive Property

• Definition of a Midpoint

Tags

CCSS.HSG.CO.B.7