
SSS and SAS Day 2
Presentation
•
Mathematics
•
10th Grade
•
Medium
Standards-aligned
Maria Goodman
Used 111+ times
FREE Resource
5 Slides • 8 Questions
1
Reflexive Property and
Vertical Angles in SSS and SAS
Today you will learn what the reflexive property and vertical angles are and how to apply them to congruent triangles.
2
All three pairs of corresponding sides are congruent
All three sides have to marked as congruent
or
The triangles have to share a common side (reflexive property)
SSS Review
3
In geometry, the reflexive property of congruence states that an angle, line segment, or shape is always congruent to itself.
Reflexive Property
4
Multiple Choice
Does SSS prove the Triangles congruent?
No, only two pairs of sides is marked as congruent
Yes, all three sides are congruent because of reflexive property
5
Multiple Choice
Does SSS prove the triangles are congruent?
No, only two sides are marked as congruent
Yes, we can use reflexive property to mark the third side congruent
6
Two sides are congruent
and
The angles between the sides are congruent
Remember.......
Vertical angles are congruent so when
you see them mark them as congruent.
SAS Review
7
Multiple Choice
Does SAS prove the triangles are congruent?
Yes
No
8
Multiple Choice
Does SAS work to prove the triangles are congruent?
No, there are no congruent angles
Yes, two sides are congruent and the included angle is congruent because they are vertical angles
9
Now it is time for you to practice..........
10
Multiple Choice
Congruent by SAS
Congruent by SSS
Not enough information to determine if they are congruent.
11
Multiple Choice
Which triangle congruence theorem can be used to prove the triangles are congruent?
SSS
SAS
None
12
Multiple Choice
How are the triangles congruent?
SAS
SSS
Not congruent
13
Multiple Choice
Which triangle congruence theorem can be used to prove the triangles are congruent?
SSS
SAS
Not congruent
Reflexive Property and
Vertical Angles in SSS and SAS
Today you will learn what the reflexive property and vertical angles are and how to apply them to congruent triangles.
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