In order to determine the distance from the starting point to the boat. Consider that with the lengthd of the trajectories you can form a right triangle.
The hypotenuse of such a triangle is the required distance, then, use the Pithagorean theorem:
h² = c1² + c2²
where c1 = 5 mi and c2 = 12 mi. Replace these values into the formula for h:
h² = (5 mi)² + (12 mi)²
h² = 25 mi² + 144 mi²
h² = 169 mi²
h = √(169 mi²)
h = 13 mi
Hence, the dist