IDENTIFYING CHARACTERISTICS OF 2D SHAPES INCLUDE:
- Number of sides
- Length of sides (a square and rhombus must have all equal sides)
- Parallel lines (a parallelogram has 2 sets of parallel lines, a trapezoid only has 1
set)
- Angles (a rectangle has 4 right angles, a parallelogram has 2 acute and 2
obtuse angles)
A Prism - ​
a 3D solid figure that has two congruent and parallel faces that are polygons (for example: triangles, rectangles, hexagons.) The remaining faces are rectangles or parallelograms. The specific name for a prism is based on the name of the two identical faces/bases. A Pyramid - a 3D solid that has a point/apex on the top. The base must be a polygon.
All other faces must be triangles. ​
The specific name for a pyramid is based on the name of the shape at the bottom/base.
IDENTIFYING CHARACTERISTICS OF 3D SHAPES INCLUDE:
- Number of faces (A face is any of the individual flat surfaces of a solid object)
- Shapes of faces (3D shapes are named after the polygons at their base)
- Edges (An edge is a line segment that joins two vertices)
- A Vertex/ plural: Vertices (A point where two or more straight lines meet)