Answer:
10.95 or
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Explanation:
The Pythagorean Theorem is as follows:

A and B represent the legs of the triangle, and C represents the hypotenuse.
For this problem, it gives us the legs. So, we have to find the hypotenuse.
Plug the values of the legs into the equation:

Now solve the equation to find the hypotenuse:
Distribute the squares
Add
Square root both sides
c = 10.95 or
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Therefore the length of the missing leg is 10.95 or
.
Hope this helps!! Ask questions if you need!