Find the length of the longer leg a and shorter leg x in the figure below using the shortcuts from Special Triangles.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.