Question

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Answer 1

Answer:

6.4

Step-by-step explanation:

The Pythagorean Theorem says that in a right triangle,

$(\text{leg})^2+(\text{leg})^2=(\text{hypotenuse})^2$.

In this problem,

$a^2+b^2=c^2\\\\4^2+5^2=c^2\\\\16+25=c^2\\\\41=c^2\\\\c=\sqrt{41} \approx 6.4$