Answer:
96 square feet
Step-by-step explanation:
Area of triangular prism
2 × ( triangle area) + 3 × ( rectangles area)
Base = b and height = h
2 × 1/2 × b × h
2 × 1/2 × 3ft × 2ft
6 square feet
Length = l and breadth = b
Rectangle area
3 × l × b
3 × 10ft × 3ft
90 square feet
90 + 6
96 squre feet
