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23 votes
How can I solve this?​

How can I solve this?​-example-1
User SEGV
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2 Answers

8 votes

Answer:

7

Explanation:

User Giorgos Keramidas
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7.8k points
6 votes

Answer:

use the Pythagorean theorem in triangle DBA as DC=DA as it is given in the question

User Madav
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