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Verified answer
BC = 6 cmAD = 14 cm
AB = 12 cm
BC/AD = BE/AE
6/14 = BE/(BE + 12)
6 × (BE + 12) = BE × 14
6BE + 72 = 14BE
72 = 14BE - 6BE
72 = 8BE
BE = 72/8
BE = 9 cm
AE = BE + AB
AE = 9 + 12
AE = 21 cm
Jadi panjang AE adalah 21 cm