Answer:
246.75 [tex]ft^{2}[/tex]
Step-by-step explanation:
Area of one triangle face = bh/2 = 7(9.3)/2 = 32.55
Area of all five triangles = 5(32.55) = 162.75
Total surface area = area of base + area of five triangles
= 84 + 162.75 = 246.75 [tex]ft^{2}[/tex]
