A triangular prism, most likely.
isoceles, equilateral, and scalene...
square
Triangles with three equal sides are called equilateral triangles.
It is a triangular prism
a paralellagram ----------------------- Usually called "irregular" since "regular" polygons have equal sides, by definition. The word "scalene" typically refers to triangles with three unequal sides.
2D shapes include squares, triangles, rectangles and circles.
Triangular prism
Triangles and rectangles.
There are many, many shapes with corners. Each has its own name. Some examples are: Rectangles, Triangles, Septangles, parallelograms, trapezoids, cube, dodecahedrons, and so forth.
Cuboid.
The solid shape that has six rectangles is called a rectangular prism, or a cuboid. This three-dimensional shape has six faces, each of which is a rectangle, and its opposite faces are congruent. Rectangular prisms can vary in dimensions but always maintain right angles between adjacent faces.
triangular prism
This shape is called a Icosahedron , I think.
sphere
Tetrahedron or Triangular Pyramid
This is a Cuboid.
isoceles, equilateral, and scalene...