Answer:
√153 (approximately 12.37 feet)
Step-by-step explanation:
Pythagorean theorem: a² + b² = c²
a and b are the sides of the right triangle, while c is the hypotenuse.
Here, you are looking for the hypotenuse.
12² + 3² = c²
144 + 9 = c²
c² = 153
c = √153