The lateral surface area of the triangles is 353.8 square cm
How to determine the lateral surface area of the triangles
From the question, we have the following parameters that can be used in our computation:
The triangular prism
The lateral area of a triangular prism is expressed as;
A = (a + b+ c) h
Given that the parameters are enumerated as;
- A is the lateral area of the triangular prism
- a is the base side
- b is the base side
- c is the base side
Now, substitute the values into the equation, we have;
Lateral area, A = (9 + 7 + 13) * 12.2
Evaluate
A = 353.8
Hence, the lateral surface area of the triangles is 353.8 square cm