correspondence and congruence 4-2a
DESCRIPTION
Correspondence and Congruence 4-2A. What is a correspondence? What are congruent triangles?. Consider page 256. Congruent figures can be slid, flipped and turned until they overlap exactly. The Right Match. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/1.jpg)
Correspondence and Congruence 4-2A
What is a correspondence?
What are congruent triangles?
![Page 2: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/2.jpg)
Consider page 256
Congruent figures can be slid, flipped and turned until they overlap exactly.
![Page 3: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/3.jpg)
The Right MatchLook at the two triangles below the
Consider, page 256. Use a protractor and ruler to list all of the angles and segments that are congruent.
Identify the vertices of the two triangles that match up with one another.
∆ABC ∆___. What does the order of the letters tell you about the congruent parts of the triangle?
![Page 4: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/4.jpg)
Try It Write a congruence statement for the
triangles shown on page 257.
TUSMNO
![Page 5: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/5.jpg)
Definitions• A correspondence between two geometric
figures is any way of pairing up their vertices.• A congruence correspondence matches
the vertices so that all pairs of corresponding parts are congruent.
![Page 6: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/6.jpg)
Corresponds to
The corresponds to symbol is
The order of the letters in the correspondence statement specifies the corresponding sides and corresponding angles.
RSTABC
![Page 7: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/7.jpg)
Corresponding sides and angles
Corresponding AnglesRA
Corresponding sides
A B
C
R S
T
SB TC AB RS
BC ST
AC RT
![Page 8: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/8.jpg)
DefinitionTwo triangles are congruent triangles
if and only if all of their corresponding parts are congruent.
![Page 9: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/9.jpg)
• What is a correspondence?A way of pairing the vertices and /or sides of a
geometric figure.
• What are congruent triangles?Two triangles whose vertices match and whose
sides match.
![Page 10: Correspondence and Congruence 4-2A](https://reader036.vdocuments.mx/reader036/viewer/2022062316/568167da550346895ddd389c/html5/thumbnails/10.jpg)
Assignment 4-2APage 258, 1-16, 31-34