The surface area of the triangular prism in the given image is calculated as: 2,088 cm².
What is the surface area of a triangular prism?
The formula for the surface area of triangular prism = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 +S2 + S3)L + bh
where we have, in this case, the variables:
Perimeter of the base (P) = 18 + 30 + 24 = 72 cm
Length of the prism (L) = 23 cm
2 * Base area = 18 * 24 = 432 cm²
Plug in the values:
Surface area = (72)23 + 432
Surface area = 2,088 cm²