Princeton Review

Display Title

Video Definition 12--3D Geometry--Face

Face

Topic

3D Geometry

Definition

A face is a flat surface that forms part of the boundary of a solid object.

Description

Faces are the flat surfaces that make up the boundaries of three-dimensional shapes. They are essential in defining the shape's structure and are used to calculate surface area. In practical applications, understanding faces is important in fields like architecture and design, where the aesthetics and functionality of a structure depend on the arrangement and properties of its surfaces. In mathematics education, faces help students understand the composition of polyhedra and other solids, providing a foundation for exploring more complex geometric concepts. For example, a cube has six square faces, each contributing to its overall symmetry and regularity.

Face
The roof of a house is made up of 
the faces of a triangular prism.

For a complete collection of terms related to 3D Geometry click on this link: 3D Geometry Video Collection.

Common Core Standards CCSS.MATH.CONTENT.5.MD.C.3, CCSS.MATH.CONTENT.7.G.A.3
Duration 1 minutes
Grade Range 4 - 6
Curriculum Nodes Geometry
    • 3D Geometry
        • 3-Dimensional Figures
Copyright Year 2024
Keywords three-dimensional geometry, 3d Geometry, defnitions, glossary term