36.What is the vertical size of the smallest vertical plane mirror in which a observer, 180 cm tall
and standing erect, can see his full length image. Answer in cm.
(A) 90
(B) 180
(C) 45
(D) 175
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統計: A(1), B(1), C(0), D(1), E(0) #874939
統計: A(1), B(1), C(0), D(1), E(0) #874939