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ho = 2 cm
so = 6 cm
f = 4 cm
Dit : si, M, hi
Jawab :
1/si = 1/f - 1/so
1/si = 1/4 - 1/6
1/si = 3/12 - 2/12
1/si = 1/12
si = 12 cm
M = si/so
M = 12/6
M = 2
hi = M . ho
hi = 2 . 2
hi = 4 cm