Find the Length of the Third Side of the Right $c$

Multiple Choice

Find the length of the third side of the right triangle. Assume that $c$ represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.
- $a=5, b=5$

A) $c=\sqrt{50} ; c \approx 7.071$
B) $\mathrm{c}=\sqrt{26} ; \mathrm{c} \approx 5.099$
C) $\mathrm{c}=5$
D) $\mathrm{c}=\sqrt{10} ; \mathrm{c} \approx 3.162$