Question

Siapa yg biasa no 31 kalo bisa pake cara

Answer 1

1/6 = 1/12 + 1/bayangan
1/bayangan
= 1/6 - 1/12
= 2/12 - 1/12
= 1/12
JADI JARAK BAYANGANNYA 12 cm

Answer 2

Diket:
h = 4 cm
f = 6 cm
s = 12 cm
ditanya: s'
1/f = 1/s' + 1/s
1/6 = 1/s' + 1/12
1/6 - 1/12 = 1/s'
2/12 - 1/12 = 1/s'
1/s' = 1/12
s' = 12 cm