Jawabanmu

2014-09-09T04:37:33+07:00
A. AB/DE = AC/DF = BC/EF
b. *panjang AC?
AC/DF = BC/EF
AC/14 = 9/8
18AC = 9.14
18AC = 126
AC = 126/18
AC = 7 cm

*panjang DE?
DE/AB = EF/BC
DE/4 = 18/9
9DE = 18.4
9DE = 72
DE = 72/9
DE = 8 cm
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