What is the square root of 29?

√29 ≈ ± 5.385165

This is what the answer would be using the Pythagorean Theorem to calculate the length of the hypotenuse for a right triangle described with 2 sides of 5 and 2 units each.

A2 + B2 = C2

52 + 22 = C2

25 + 4 = C2

29 = C2

C=√29