Hi there! :)
Since we are looking for the hypotenuse, we will use the Pythagorean theorem.
Which is:
\(a^2+b^2=c^2\)
We know the values of a and b so let's plug them in
\(3^2+10^2=c^2\)
\(9+100=c^2\)
\(109=c^2\)
Square root both sides to cancel out the root
\(\sqrt{109} = \sqrt{c^2}\)
Final answer:
C=10.44
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