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1/20 - 1/15 = 1/si
(3 - 4) / 60 = 1/si
-1/60 = 1/si
- 60 cm = si
Letak bayangan >>> Dibelakang cermin , ruang IV
Perbesaran >>>> 60 / 15 = 4 kali
Sifat >>> Maya , Tegak , Diperbesar