Two cars travel on straight highways that are 80° apart in

[jkelley]

Two cars travel on straight highways that are 80° apart in

Two cars travel on straight highways that are 80° apart in direction. One car travels at 60 miles per hour and the other at 50 miles per hour.

How far apart would they be after 30 minutes of travel?

 

[galactus]

Use the law of cosines.

distance = (rate)(times)

If car A travels at 60 mph for 1/2 an hour, well, they've travelled 30 miles.

Car B, 25 miles.