Answer:
135.42 yd²
Step-by-step explanation:
Surface area of triangular prism = 2(BA) + PH
Where,
Triangular base area (BA) = ½bh = ½*4*3 = 6 yd²
Perimeter of triangular base (P) = 4 + 3.61 + 3.61 = 11.22 yd
Height of prism (H) = 11 yd
Surface area = 2(6) + 11.22 × 11
= 12 + 123.42
Surface area = 135.42 yd²
