Jawabanmu

2014-04-23T10:25:04+07:00
H= 2 cm S= 15cm R=20 cm S' = -6 cm M = 0,4x H' =0,8 cm
2014-04-23T11:38:17+07:00
S = 15 cm h = 2 cm f = 20/2 = 10 cm S' = 30 cm M = s' / s = 30 / 15 = 2 kali M = h' / h 2 = h' / 2 H' = 4 cm Makasi, maaf klo salah :D