fig. 1 5m 1 2x45 4m 2x90 1m 2m 1m 2 L=1+1+4+(2x2)=10 L=1+2+5+(2x1)=10 1m (H totaal= 5m) 4 12m 3 1m 1x90 38c-744 L=4+1+(2)=7 fig. 2 8 3m