Miss tan has some sweets to give her children. if she gives each child 4 sweets, she would have 5 sweets left. if she gives each child 6 sweets, she would need 11 more sweets. how many children are there?

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.

may i see the picture? it would a lot, xox