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BlackZzzverrR [31]
2 years ago
11

30 POINTS TO WHO EVER ANSWER THIS QUESTION!!!!

Mathematics
1 answer:
mote1985 [20]2 years ago
5 0
Answer:15

Explanation:Since these are similar triangles it means each contrasting side length has a ratio and the ratio for the side lengths is 1:3 based on 4:12 so you would multiple the side length of Db times 3 to find Ed and your answer is 15
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