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Jlenok [28]
2 years ago
13

What is EC? please help me I will mark you as brainliest!

Mathematics
1 answer:
Lelu [443]2 years ago
4 0

Step-by-step explanation:

DB/EC = AD/BE

5/EC = 4/12

5 = 4/12 EC

5×12/4 = EC

15 = EC

EC = 15

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see the explanation

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