Aplane is a set of on a flat surface that extends forever. a. lines. b. points. c. other planes. d. none of the above

ab will be equal to

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.