I need an urgent answer please,
A runner is 22 km east and 15 km south of his starting point.
a) How far is he in a direct line from his starting point?
b)How long would it take him to return to his starting point in a direct line if he can run at 10 kim per hour?

Question

I need an urgent answer please,
A runner is 22 km east and 15 km south of his starting point.
a) How far is he in a direct line from his starting point?
b)How long would it take him to return to his starting point in a direct line if he can run at 10 kim per hour?

anonymous · Answer

a) 22^2+15^2= h which is distance from origin

b) h/10 km/h = number of hours