Answer:
3 and 7
2 and 6
4 and 8
1 and 8
Step-by-step explanation:
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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