alainabbyboo22
Complete the reason for step 4 in the proof below:
Given: line segment DE is parallel to line segment FG
Prove: triangle DEC is similar to triangle FGC
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alainabbyboo22
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Step
Statements
Reasons
1
line segment DE is parallel to line segment FG
Given
2
angle D is congruent to angle F
Alternate Interior angles
3
angle E is congruent to angle g
Alternate Interior angles
4
triangle DEC is similar to triangle FGC
A. Side-Angle-Angle Similarity Postulate
B. Side-Side-Side Similarity Postulate
C. Angle-Angle-Angle Similarity Postulate
D. Angle-Angle Similarity Postulate
alainabbyboo22
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|dw:1347903763674:dw|
alainabbyboo22
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just to clear things up so it didn't confuse anyone .
ganeshie8
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so, in step 2 you proved one set of ANGLEs are congruent
ganeshie8
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and in step3 you proved second set of ANGLEs are congruent
ganeshie8
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you have TWO sets of ANGLES that are congruent. which similarity theorem you may use for justification ?
alainabbyboo22
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|dw:1347904123930:dw|
alainabbyboo22
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there , this one is clearer to see .
ganeshie8
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wow good work :)
alainabbyboo22
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thanks :) alright now looking at what you said !!
ganeshie8
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ok. . :)
alainabbyboo22
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hm .. i wanna go with option A.
alainabbyboo22
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is that incorrect though ?
ganeshie8
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we have only 2 ANGLES that are congruent, we dont knw about SIDES right ?
alainabbyboo22
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true !! so option C or D is what i need to focus on
alainabbyboo22
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D
ganeshie8
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yes last one is the correct one, AA similarity. great work :D
alainabbyboo22
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thanks !! (:
ganeshie8
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np :)