Answer:
c ≈ 5.83095189485
Step-by-step explanation:
We can use the Pythagorean Theorem [tex](a^{2} +b^{2} =c^{2} )[/tex] for these kinds of problems.
So, pretend that line is the hypotenuse of a right triangle. One side would be
3 units long and another would be 5 units long. Let's plug that into the theorem.
3² + 5² = c²
Simplify.
9 + 25 = c²
Add.
34 = c²
And now square root both sides.
√34 = c
c ≈ 5.83095189485
