Answer:
B 6,71 units
Step-by-step explanation:
Use the Pythagorean Theorem:
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ \\ {6}^{2} + {3}^{2} = {c}^{2} \\ \\ 36 + 9 = 45 \\ \\ 45 = {c}^{2} \\ \\ 6.7082039325 ≈ c \\ \\ 6,71 ≈ c[/tex]
* When we are talking about length, we want the NON-NEGATIVE root.
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