Use the properties of parallel lines to solve the problem.
is parallel to 
. Find the measure of each numbered angle.
A. ?1 ? ?3, both are 59°; ?2 ? ?ABC, both are 121°.
B. ?1 ? ?2, both are 121°; ?3 ? ?ABC, both are 59°.
C. ?1 ? ?3, both are 121°; ?2 ? ?ABC, both are 59°.
D. ?2 ? ?3, both are 121°; ?1 ? ?ABC, both are 59°.
Answer: C
Mathematics
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