Answer:
3 cans
Step-by-step explanation:
area 1=.9×.3=.27 m²
area2=1/2×0.5×0.5=0.25/2=0.125 m²
total area=0.27+0.125=0.395 m²
area of 6 signs=0.395×6=2.370 m²
total cans reqd.=2.37/1=2.37
so 3 cans are reqd.