Jawabanmu

2014-05-13T21:06:07+07:00
S = 20
f = 6
h = 12

1/f = 1/s + 1/s'
1/6 = 1/20 + 1/s'
1/s' = 1/6 - 1/20
1/s' = 10/60 - 3/60
1/s' = 7/60
s' = 8,6 cm

M= s'/s = 8,6/20 = 0,4 kali

h' = m . h = 0,4 .12 = 5,1

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