Where is the midpoint of AB if A(6, 4) and B(5,-2)? A) (11,2)
B (11,6)
C) (5.5,3)
D (5.5,1)

Step-by-step explanation:

The midpoint is just the average coordinates of the endpoints.

mp=((x1+x2)/2, (y1+y2)/2), we have points (6,4) and (5,-2)

mp=((6+5)/2, (4-2)/2)

mp=(5.5, 1)

So D is the answer.

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.