4.2 Apply Congruence and
Triangles

Mr. Saucedo
Geometry
Milby High School
OBJECTIVE…
• We will identify
congruent figures.
VOCABULARY
• CONGRUENT FIGURES

• CORRESPONDING PARTS
CONGRUENT FIGURES
• DEFINITION:
▫ Figures with the same size and shape.

• SYMBOL:
• VISUAL
Checkpoint:
Are the following shapes congruent?
CHECKPOINT:
Are the following figures congruent?
CHECKPOINT:
Are the following figures congruent?
TALKING ABOUT MATHEMATICS…
• Turn to your neighbor and tell him what makes
figures congruent.
CORRESPONDING PARTS
• DEFINITION:
▫ A pair of sides or angles that have the same
relative position in two congruent or sim...
ACTIVITY: CORRESPONDING PARTS
ACTIVITY DEBRIEF QUESTIONS
• How can patty paper help you to determine
which sides and angles are corresponding?
• How do ...
BIG QUESTION:
• How can we
decide if two
Figures are
congruent or
not?
• What steps
could we take
to make a
mathematical
d...
CHECKPOINT:
• Are the two triangles congruent?
GUIDED PROBLEM 1
• Identify congruent
parts.

• Are these triangles
GUIDED PROBLEM 2
CHECKPOINT
INDEPENDENT PRACTICE
Section 4-2, page 228
Problems: 3, 5, 6, 7, 8, 9, 10, 12 (is it congruent?),
16, 20.
Pre-AP: Do works...
HOMEWORK:
Section 4-2
Workboko page 64
Problems: 2, 3, 4, 5, 6, 7, 11 & 12
Pre AP : Add problems 13, 14 & 15.
Upcoming SlideShare
Loading in …5
×

4.2 apply congruence and triangles

985 views

Published on

Lesson 4.2 in High School Geometry. Congruence in triangles and corresponding sides.

Published in: Technology, Education
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
985
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
21
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide
  • {}
  • 4.2 apply congruence and triangles

    1. 1. 4.2 Apply Congruence and Triangles Mr. Saucedo Geometry Milby High School
    2. 2. OBJECTIVE… • We will identify congruent figures.
    3. 3. VOCABULARY • CONGRUENT FIGURES • CORRESPONDING PARTS
    4. 4. CONGRUENT FIGURES • DEFINITION: ▫ Figures with the same size and shape. • SYMBOL: • VISUAL
    5. 5. Checkpoint: Are the following shapes congruent?
    6. 6. CHECKPOINT: Are the following figures congruent?
    7. 7. CHECKPOINT: Are the following figures congruent?
    8. 8. TALKING ABOUT MATHEMATICS… • Turn to your neighbor and tell him what makes figures congruent.
    9. 9. CORRESPONDING PARTS • DEFINITION: ▫ A pair of sides or angles that have the same relative position in two congruent or similar figures. • VISUAL ▫ Angles A and E are corresponding. ▫ Angles C and F are corresponding. ▫ Side BC corresponds to DF, etc.
    10. 10. ACTIVITY: CORRESPONDING PARTS
    11. 11. ACTIVITY DEBRIEF QUESTIONS • How can patty paper help you to determine which sides and angles are corresponding? • How do you determine if an angle is included between two sides? • How do you determine if a side is included between two angles?
    12. 12. BIG QUESTION: • How can we decide if two Figures are congruent or not? • What steps could we take to make a mathematical decision?
    13. 13. CHECKPOINT: • Are the two triangles congruent?
    14. 14. GUIDED PROBLEM 1 • Identify congruent parts. • Are these triangles
    15. 15. GUIDED PROBLEM 2
    16. 16. CHECKPOINT
    17. 17. INDEPENDENT PRACTICE Section 4-2, page 228 Problems: 3, 5, 6, 7, 8, 9, 10, 12 (is it congruent?), 16, 20. Pre-AP: Do worksheet.
    18. 18. HOMEWORK: Section 4-2 Workboko page 64 Problems: 2, 3, 4, 5, 6, 7, 11 & 12 Pre AP : Add problems 13, 14 & 15.

    ×