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abruzzese [7]
4 years ago
12

BC is parallel to DE What is AC?

Mathematics
2 answers:
Olenka [21]4 years ago
6 0

Answer:

the answer is indeed 12



DaniilM [7]4 years ago
3 0
ΔABC ~ ΔADE
AC/AE = AB/AD
AC/(AC+15) = 8/18
18AC = 8(AC+15)
18AC = 8AC + 120
18AC - 8AC = 120
10AC = 120
AC = 120/10
AC = 12
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