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Worksheets4-5 Triangle Congruence 'Proofs'
Total questions: 20
Worksheet time: 3570secs
If L is the midpoint of TJ, what must be true? Draw and label the diagram on your paper.
TL=JT
JL=TJ
TL=LJ
T is also the midpoint of JL
If DA bisects IE, then
ID=ED
IA=EA
<IDA=<EDA
<IAD and <EAD are right angles
In this picture, we know for sure that... (think about what theorem allows you to conclude this)
<TEB=<ETS
<BTE=<SET
BE=ST
Both 1 and 2 are correct
Are these two triangles congruent? If so, state the theorem.
No, not enough info.
Yes - AAS
Yes - HL
Yes - SSS
Use the congruence statement to find the missing part of the statement
WV
UW
VU
WB
Based on the given info, WHY do you know the following?
Definition of Angle Bisector
Alternate Interior Angles Theorem
Reflexive Property
Definition of Midpoint
Use the GIVEN information to decide WHY the angles are congruent.
Given
Vertical Angles Theorem
Definition of Angle Bisector
Alternate Interior Angles Theorem
Explain, step by step, how you know the triangles are congruent. (The previous problem was a hint!) Use proper theorems and vocab and the given info! Do this on paper first!!!!
Explain how you know the triangles are congruent. Use proper vocabulary, theorems, and postulates. Be sure to use the given info and the 'hint'. eEmember to draw and label your diagram on paper!
