The surface area of the triangular prism is 168 ft².
Step-by-step explanation:
The surface area of this triangular prism is given by;
Where l is length and w is width
Surface area will be;
2(l×w) +(l×w)+1/2(b×h)×2
2(9×5) + (9×6) + 1/2(6×4)×2
2(45) + (54) +24
90 +54 + 24 = 168 ft²
Learn More
Surface area of a triangular Prism : https://brainly.com/question/12280842
Keyword : surface area, triangular, prism
#LearnwithBrainly
