A 3-dimensional figure with 5 faces is a triangular prism. It consists of two triangular bases and three rectangular faces connecting the corresponding sides of the bases. The total number of faces in a triangular prism is 5.
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A pyramid
A square based pyramid
Pyramid
i don't know that's why i asked! duhhh
A prism is a 3-dimensional figure, which has a volume, so I presume you mean surface area. The simple answer is you find the area of each face (both pentagons and all 5 parallelograms), and then add them together. If you don't know how to find the area of one or more of the faces, that is a separate question.