Mathematics
Junior High
【至急】点Pから鏡Bへと進んだ光が、鏡Bで跳ね返り、点Qに届くまでに進んだ道筋を書きなさい
という問題です！どなたか教えてください（ ; ; ）
図2
ar A
鏡
ar
P
Q
B
Answers
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