panjang AC adalah #Tolangdibantunya

AC/DF = BC/EF
AC/14 = 8/16
AC/14 = 1/2
2AC = 14
AC = 14/2
AC = 7 cm

*semoga membantu. sukses selalu ^_^

AC:DF = BC:EF
AC:14 = 8:16
AC:14 = 1:2
2 * AC = 14
AC = 14:2
= 7 cm