What are the names of the segment in the figure?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane