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jeyben [28]
2 years ago
10

HELPPPPPP ITS FOR MY FINALLLL click the photo below

Mathematics
1 answer:
Brilliant_brown [7]2 years ago
3 0

Answer:

28

Step-by-step explanation:

▪︎ ADE and ABC are similar triangles (AAA)

▪︎ DA = DB + BA = 30 + 12 = 42

▪︎ k = DA / BA = 42 / 12 = 3.5

▪︎ DE = BC * k = 8 * 3.5 = 28

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