Two surveyors with two-way radios leave the same point at 9: 00 a. m., one walking due south at 3 mi/hr and the other due west at 4 mi/hr. how long can they communicate with one another if each radio has a maximum range of 6 miles?

Let they communicate with one another  for time t.

Please see the attached image.

We have been given that each radio has a maximum range of 6 miles. Hence, the hypotenuse of the triangle is 6.

We know the formula

Using this formula, we have

Now, using Pythagorous theorem, we have

Therefore, they can communicate for 1.20 hours.

what level of math? also i don't need to be paid if i can you.