Question 714032
After 1 hour the buses are 30 km and 40 km away from the starting point.


they are travelling at right angles.

At any given time the starting point and the buses form a right angle

The distance between the buses will be the hypotenuse.

Using Pythagoras theorem

hypotenuse ^2 = side1^2 +side2^2



= 30^2 +40^2
= 900+1600

=2500

take the square root

hypotenuse = 25 km

They are 25 km away from each other