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kari74 [83]
2 years ago
13

BRAINIST & 30 POINTS

Mathematics
1 answer:
soldier1979 [14.2K]2 years ago
7 0

Answer:

DF= 33

Step-by-step explanation:

The ratio is equal to 6:5:1 Which can be changed into 18:15:3

Since DE=18 and EF=15 you simply add and = 33

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