panjang AB adalah? bantu dong:(

SEGITIGA SEBANGUN

AD = EF = 3 cm
DC = 9 cm
AC = AD + DC = 12 cm
DE = 6 cm

DItanya nilai AB

[tex] \frac{ab}{de} = \frac{ac}{dc} \\ \frac{ab}{6} = \frac{12}{6} \\ ab = \frac{12\times 6}{9} \\ ab = \frac{72}{9} \\ ab = 8 [/tex]


Jawaban D