find the answer.
ok.
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Anonymous:
120 will be ur answer buddy
Answers
Answered by
14
Answer:
a=120°
angle PQR= ANGLE QRS=60°(alternate interior angle)
ANGLE QRS= ANGLE RST=60°(alternate interior angle)
ANGLE RST+a=180° (linear pair)
a=180°-60°
a=120°
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