That shape is called a triangular prism. A prism is made of rectangles arranged in a tube with any 2D shape at the ends. This shape determines what kind of prism it is, you can get pentagonal, hexagonal, and many other types of prism.
The total distance around a plane geometric shape, i.e. one drawn on a piece of paper, is called the shape's perimeter.
It is an octagonal prism that has a total sum of 10 faces
A cube (6 square faces total).
A cube, also known as a hexahedron.
They are all rectangular but there can also be 4 rectangular faces and 2 square faces. Always 6 in total.
The measure of a perimeter is the total length of all sides of a geometric shape, so any shape with a combination of sides whose total is 27 would yield this perimeter.
A pentagonal prism has 7 sides : 5 side faces and 2 bases.However, if all sides of the prism are considered faces, a shape with5 total faces including the 2 bases is a triangular prism.
The triangular prism is a 3-D shape that has a total of 5 faces. It also has 9 edges and 6 vertices.
The 3D shape with 2 octagons and 8 squares is called a truncated square antiprism. It is a type of prism where the top and bottom faces are octagons, and the side faces are squares. This shape has a total of 10 faces, including 2 octagons and 8 squares.
Rectangular Prism - A 3-D shape with 2 rectangular bases, with a total of 6 faces. Rectangular Pyramid - A 3-D shape with only 1 base that's a rectangle, with a total of 5 faces.
A rectangular-based pyramid.