What Are 3D Shapes?

3D shapes, or three-dimensional shapes, are geometric figures with length, width, and height. Unlike 2D shapes, they occupy space and have volume. Common examples include cubes, spheres, cylinders, and pyramids. 🏯

Key 3D Shapes

  • Cube 🎲

    • 6 square faces
    • 12 edges and 8 vertices
    • Volume: $ V = a^3 $ (where $ a $ is edge length)
    Cube

  • Sphere ⚽

    • No edges or vertices
    • Volume: $ V = \frac{4}{3}\pi r^3 $ (where $ r $ is radius)
    Sphere

  • Cylinder 🥤

    • 2 circular bases and 1 curved surface
    • Volume: $ V = \pi r^2 h $ (where $ r $ is radius, $ h $ is height)
    Cylinder

  • Pyramid 🏺

    • Triangular faces meeting at an apex
    • Volume: $ V = \frac{1}{3} \times \text{Base Area} \times \text{Height} $
    Pyramid

Explore More

Want to dive deeper into 2D shapes? Check out our Geometry Basics tutorial for a visual breakdown of triangles, circles, and polygons. 📚