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5 votes
5 votes
HELPP! i don’t know this

HELPP! i don’t know this-example-1
User Tobsey
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1 Answer

13 votes
13 votes

Answer: A

Explanation:

Using the 3D Pythagorean theorem,
AB=\sqrt(6^2 + 4^2 + 1^2)=\sqrt(53)

User Teran
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