4.1 Congruent Triangles (S'21)

4.1 Congruent Triangles (S'21)

The important thing here is that corresponding parts are listed in the SAME ORDER!

These, again!

Multiple Choice

△BAC ≅ △QPR. If ∠B = 2x and ∠Q = 10, find the value of x.

• 2

• 4

• 5

• -5

Multiple Choice

Name the corresponding angle or side.

• A
• B
• C
• D

Multiple Choice

Which segment is congruent to EF? 

• HG
• HF
• GF
• IE

Multiple Choice

∠E ≅ ∠ __

• A
• B
• C
• D

Multiple Choice

Use the congruency statement to answer the following: 
<F = ___

• <H
• <I
• <G
• not congruent to another angle

Multiple Choice

Complete the congruence statement.

• CRP
• PCR
• RPC
• PRC

Multiple Choice

Which is NOT a true statement?

• FG ≅ GH 
• AB ≅ DC 
• BA ≅ GH 
• XY ≅ WZ

Multiple Choice

• A
• B
• C
• D

Multiple Choice

• 3 inches
• 5 inches
• 90 inches
• 4 inches

Multiple Choice

• A
• B
• C
• D

Multiple Choice

∆ABC≅∆XYZ
which is true?

• AB≅XY
• AB≅YX
• AB≅XZ
• BC≅CB

Multiple Choice

• A
• B
• C
• D

Multiple Choice

• 4m
• 5m
• 3m
• 4.5m

Multiple Choice

Choose the correct item to make the congruence statement true.

• A
• B
• C
• D

Multiple Choice

∠A ≅∠?

• ∠B
• ∠E
• ∠D
• ∠F

Multiple Choice

Figures that have the same _____ and size are congruent triangles. 

• corresponding
• corners
• angles
• shape

Multiple Choice

In the figure, which part of  $\Delta DEF$  is a corresponding part to  $\overline{AC}$  ?

•  $\overline{DF}$  

•  $\angle D$  

•  $\overline{DE}$  

•  $\angle F$  

Multiple Choice

Since parts of congruent triangles have corresponding parts, we have to make sure that, when we name congruent triangles, the angles that correspond to one another line up in the names.  Given how the angles and sides are marked as congruent, which triangle is  $\Delta BCA$  congruent to?

•  $\Delta EFD$  

•  $\Delta DEF$  

•  $\Delta FED$  

•  $\Delta DFE$  

Multiple Choice

If two triangles are congruent, then every part of one triangle will have a corresponding part in the other triangle to which it is congruent. We say that "Corresponding Parts of Congruent Triangles are Congruent." What would be a great way to abbreviate this?

• CPCTC

• CTCPC

• PCTCC

• TCPCP