Please help? :') If you can not see the photo please tell me where it says ' ask lennvrgs about this question'. Thank you!

Can (3,5 and square root 34) be sides on a right triangle?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Math it's appreciated. (picture provided)