An airplane travels about 1500 km in a straight line between Toronto and Winnipeg. However, the plane must climb to XXXXXXXXXXm during the first 200 km. Then it must descend XXXXXXXXXXm during the...

An airplane travels about 1500 km in a
straight line between Toronto and
Winnipeg. However, the plane must climb
to 10 000 m during the first 200 km. Then
it must descend 10 000 m during the final
300 km.
a) How much distance do the climb and
descent add to the flight?
b) The airplane averages a speed of
600 km/h. Do climbing and descending
10 000 m add hours, minutes, or
seconds to the flight? Explain.