The diagram shows a lawn with a fence along on edge

37.92 euros.

Step-by-step explanation:

First divide both parts into a square and a right triangle.

Then find the area of the square. 12*12=144 meters squared.

Next find the area of the triangle. 12*8=96/2=48

Sum. 144+48=192

Divide. 192/100= 1.92 cans of weedkiller.

Multiply. 1.92*19.75= 37.92 euros.

17²-8²=225

√225=15

1/2(12+20)×15=240m²

240÷100=2.4

3×19.75=£59.25

Step-by-step explanation:

i do not know this sorry : (