Jawabanmu

2014-08-22T22:42:25+07:00
Misal : PS = x
maka ;

PS = x/AD = PQ/9 => lalu dikali silang, maka :
PS = x dikali 9 = 12 dikali 18
PS = x = 12 . 18 /9
PS = x = 24 cm

jadi PS = 24 cm :)
2 4 2