# 3-Dimensional Figures

### ALL THERE IS TO KNOW ... AND MORE :)

## Attributes of 3-D Figures

## FACEThe flat surface of a 3-D figure. | ## EDGEA line segment where two faces meet on a solid. | ## VERTEXThe point (corner) of intersection of three or more edges of a solid. |

## Types of 3-D Figures

## Prisms:

## Rectangular Prism6 Rectangular Faces 12 Edges 8 Verticies | ## Cube6 Square Faces 12 Edges 8 Verticies | ## Triangular Prism5 Faces * 2 Triangular Faces * 3 Rectangular Faces 9 Edges 6 Verticies |

## Pyramids:

## Rectangular Pyramid5 Faces * 1 Rectangular Face * 4 Triangular Faces 8 Edges 5 Verticies | ## Square Pyramid5 Faces * 1 Rectangular Face * 4 Triangular Faces 8 Edges 5 Verticies | ## Triangular Pyramid4 Faces * 4 Triangular Faces 6 Edges 4 Verticies |

## Who Am I?

1. All my faces the same size and same shape. Who am I?

2. Two solids that have the same number of edges. Who am I?

3. I only have curved surfaces. Who am I?

4. All my faces are congruent. Who am I?

5. I have 2 flat surfaces shaped like circles. Who am I?

6. I have only 1 circular base. Who am I?

7. I am 8 verticies. Who am I?

## Connection to STAAR

## Which statement below comparing the figures is true?

A. Both figures have the same number of vertices.

B. All the faces of both figures are the same shape.

C. Each figure has a pair of opposite faces that are the same shape.

D. Both figure have 12 edges.