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UNIT 2A: CONGRUENCE, SIMILIARITY AND

PROOFS

Name: __________________________________________________ Date: _____________________________ Period: _______________

QUESTIONS/NOTES PRACTICEWhat is the Angle Sum Theorem?

Remote Interior Angles Theorem:

Find the values of x in each diagram.

What are Vertical Angles?

What is the Remote Interior anglesTheorem?

What is the value of x?

What are the properties of Use Your VocabularyCircle the figures that appear to be congruent.

Write T or F for the statements below.____ 1. Congruent angles have different measures.

____ 2. A prism and its net are congruent figures.

____ 3. The corresponding sides of congruent figures have the same measure.

Congruent Figures?

The corresponding sides are ___________ .

The corresponding angles are __________ .

Figures are congruent if there is a

____________________ ________________that maps one onto the other.

Find each of the missing angle measures.

What is the rule for writing Congruent polygons have ____________ corresponding parts—their congruency statements? matching _________ and_________ . When you name congruent

polygons, you must list corresponding vertices in the same order.

What must be true if two triangles are Are the triangles congruent?

Justify your answer.Congruent?1.2.

Name all the Triangle Congruence

Write a Proof:Given: EI ≅ FH , FE ≅ HI , and G is the midpoint of both EI and FH . Prove: ΔFEG ≅ ΔHIG

What other information do you need to prove ΔABC ≅ ΔADC by SAS? Explain your answer.

Postulates and Theorems.

Given: AC bisects ∠BAD, ∠ B ≅∠ D Prove: ΔCAB ≅ ΔCAD

What does “CPCTC” stand for?

Prove using CPCTC

UNIT 2B: CONGRUENCE, SIMILIARITY AND

PROOFS

QUESTIONS/NOTES PRACTICEWhat are the most common angle Show all geometry,

justifications and work for every step and find x and y.

________________________________________________________________________

Find the value of x.

Pair relationships in geometry?

How is proportionality related to similar figures?

Find the value of x.

How can two triangles be proven Similar?

List all of the Triangle CongruencePostulates.

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