Answer:
150ft²
Step-by-step explanation:
Front facing rectangle: lw=6*5=30
Back facing rectangle: lw=6*5=30
Top facing rectangle: lw=2*6=12
Bottom facing triangle: lw=10*6=60
Trapezoid: (h(a+b))/2=(3(2+10))/2=3(12)/2=36/2=18
Total surface area = 30+30+12+60+18=150ft²
