The total surface area of the triangular prism is 14 cm². Then the correct option is B.
What is a triangular prism?
A triangular prism is a closed solid that has two parallel triangular bases connected by a rectangular surface.
The total surface area of the triangular prism will be
[tex]\rm Total\ area = 3(area \ of\ rectangle) + 2(area\ of \ triangle)[/tex]
The area of the triangle will be
[tex]\rm area\ of \ triangle = \dfrac{1}{2} * 2 * 4\\\\area\ of \ triangle = 4[/tex]
The area of the rectangle will be
[tex]\rm area\ of \ rectangle = 2 *1\\\\area\ of \ rectangle = 2[/tex]
Then the total area will be
[tex]\rm Total\ area = 2*4 + 3*2\\\\Total\ area = 8 + 6 \\\\Total\ area = 14[/tex]
The total surface area of the triangular prism is 14 cm². Then the correct option is B.
More about the triangular prism link is given below.
https://brainly.com/question/2654102
