📖 Part 1: Vocabulary Definitions

Match each vocabulary term to its correct definition by writing the letter on the line provided.

1. Face ____

2. Edge ____

3. Vertex ____

4. Prism ____

5. Pyramid ____

6. Net ____

A. A 3D figure with two congruent, parallel polygon bases connected by rectangular faces

B. A flat surface on a 3D figure

C. A 2D pattern that folds up to form a 3D figure

D. A point where two or more edges meet (a corner)

E. A line segment where two faces of a 3D figure meet

F. A 3D figure with a polygon base and triangular faces that meet at one point

Fill in the blanks using the word bank below.

Word Bank: volume, surface area, cross-section, polyhedron, base, lateral face

7. A _________________________ is a 3D figure whose faces are all flat polygons (no curved surfaces).

8. The amount of space inside a 3D figure is called its _________________________.

9. The total area of all the faces of a 3D figure is called its _________________________.

10. A _________________________ is the shape you see when you slice straight through a 3D figure.

🔷 Part 2: Key Concepts – Multiple Choice

Circle the best answer for each question.

11. A rectangular prism has how many faces?

4 faces

5 faces

6 faces

8 faces

12. Which of the following 3D figures has NO edges or vertices?

Rectangular prism

Triangular pyramid

Sphere

Cylinder

13. A triangular prism has how many edges?

6 edges

9 edges

12 edges

5 edges

14. Select ALL figures that are considered polyhedrons:

Cube

Sphere

Triangular pyramid

Cone

Hexagonal prism

✏️ Part 3: Short Answer & Review

15. A square pyramid has a square base and 4 triangular faces. Complete the table below:

   • Number of Faces: _______
   • Number of Edges: _______
   • Number of Vertices: _______

16. Euler's Formula states: Faces + Vertices – Edges = 2. Use this formula to check your answers above. Show your work:

17. In your own words, explain the difference between a prism and a pyramid. Give one real-world example of each.

18. Draw and label the net of a rectangular prism in the box below. Label the length, width, and height on your net.

3D Vocabulary Study Guide

3D Vocabulary Study Guide

📖 Part 1: Vocabulary Definitions

🔷 Part 2: Key Concepts – Multiple Choice

✏️ Part 3: Short Answer & Review

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