A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.25 km/hr. The child is 0.530 km from shore...

A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.25 km/hr. The child is 0.530 km from shore and 0.750 km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximum speed of 20.1 km/hr relative to the water, what heading relative to the shore should the pilot take?