In the figure provided, 
. Explain why it is necessary that 
is alsocongruent to 
What will be an ideal response?
Given that 
, we know that 
and that 
. Because vertical angles are congruent, we also have 
. Then 
is congruent to 
by the reason AAS.
, we know that and that . Because vertical angles are congruent, we also have . Then is congruent to by the reason AAS.
Mathematics
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Mathematics
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?
?
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Mathematics