3D figures, also known as solids, are shapes that have three dimensions: length, width, and height. Unlike 2D shapes which are flat, 3D figures take up space. Common examples include cubes, spheres, cones, cylinders, and pyramids. Understanding their properties like faces, edges, and vertices is key to mastering geometry! Get ready to test your knowledge on identifying and describing these shapes.
Match the terms with their correct definitions:
| Term | Definition |
|---|---|
| 1. Vertex | a) A flat surface of a 3D shape |
| 2. Edge | b) The point where edges meet |
| 3. Face | c) A 3D shape with circular base and a point |
| 4. Cone | d) The line segment where two faces meet |
| 5. Volume | e) The amount of space a 3D object occupies |
Answer Key:
Complete the sentences below using the words provided: cube, sphere, cylinder, faces, edges.
A _______ has 6 square ______, 12 ______, and 8 vertices. A ______ has no faces, edges, or vertices. A _______ has 2 circular faces and a curved surface.
Answer Key:
Imagine you are building a tower using different 3D shapes. Which shapes would be best for the base, and why?
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