Answer:
C.
Step-by-step explanation:
We need to use the Pythagorean theorem to complete this problem. We are given the hypotenuse and the base of the triangle in the middle. The hypotenuse is 5 and the base is 3.[tex]5^{2}[/tex] + [tex]3^{2}[/tex] = [tex]a^{2}[/tex] is what we will complete.
[tex]5^{2} +3^{2} = a^{2}[/tex]
[tex]25 + 9 = 34[/tex]
[tex]34 = a^{2}[/tex]
[tex]\sqrt{34} =a[/tex]
Therefore, the answer is C.
