If you're good at trig please help me
Show full working out ;)

We break down the area into two triangles - since we're given all their side lengths, we use Heron's formula: where

i think this could be a possible answer (1 / 84) -1

good luck! : d

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.