Question

Two trains leave a railway station at the same time. The first train travels due west and the

second train due north. The first train travels at a speed of 20 km/hr and the second train

travels at 30 km/hr. After 2 hours what is the distance between them?​

Answer 1

Answer:

72.1 km

Step-by-step explanation:

angle b/w 2 trains = 90°

then distance b/w them = √(2×20)² + (2×30)²

=√1600+3600

= √5200

=72.1 km