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Three-Dimensional Figures

Three-Dimensional Figures. 2.B.1.a Identify and classify pyramids and prisms by the number of edges, faces, or vertices 2.B.1.b Identify and classify pyramids and prisms by the base 2.B.2.a Compare a plane figure to faces of solid geometric figure

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Three-Dimensional Figures

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  1. Three-Dimensional Figures 2.B.1.a Identify and classify pyramids and prisms by the number of edges, faces, or vertices 2.B.1.b Identify and classify pyramids and prisms by the base 2.B.2.a Compare a plane figure to faces of solid geometric figure 3.A.1.a Use technology tools, including software and hardware, from a range of teacher-selected options to learn new content or reinforce skills

  2. Three-dimensional figures are not flat figures. They have length, width, and height. They are also called solid geometric figures. • The flat surfaces of three-dimensional figures are called faces. • The faces meet at edges. • The edges are line segments. • The edges meet at vertices (plural of vertex).

  3. Rectangular prism face base edge vertex A rectangular prism has 6 faces, 8 vertices, and 12 edges.

  4. face cube vertex edge A cube, just like a rectangular prism, has 6 faces (all squares), 8 vertices, and 12 edges.

  5. Triangular prism base base face face Clarification mdk12 vertex A triangular prism has five faces. Its base is a triangle. (Notice that even when the triangular prism sits on a rectangle, the base is still a triangle.) Two of its faces are triangles; three of its faces are rectangles. It has six vertices and nine edges.

  6. Rectangular pyramid face vertex base A rectangular pyramid has 5 faces. Its base is a rectangle or a square and the other 4 faces are triangles. It has 8 edges and 5 vertices.

  7. vertex Triangular pyramid face base A triangular pyramid has four faces. All faces, including its base, are triangles. It has six edges and four vertices.

  8. Now it’s your turn!

  9. What is the name of a three-dimensional figure with six square faces? • pyramid • cube • solid • edge

  10. I am a three-dimensional figure with five faces. My base is a rectangle; my other faces are triangles. I have five vertices and eight edges. What am I? • rectangle prism • rectangular pyramid • triangular prism • triangular pyramid

  11. How many edges does a square pyramid have? • 4 • 5 • 7 • 8

  12. How many vertices does a rectangular prism have? • 12 • 8 • 6 • 4

  13. Which of the following has a base that is a triangle? • Triangular prism • Cube • Square pyramid • Rectangular pyramid

  14. I am a three-dimensional figure with four faces. All of my faces, including the base are triangles. What am I? • rectangular prism • triangular prism • triangular pyramid • rectangular pyramid

  15. How many faces of a cube are squares? • 2 • 4 • 6 • 8

  16. Sally is going to build a table for her family room. It is in the shape of a triangular prism. What shapes will she need to build the table? • 5 triangles • 2 triangles and 3 rectangles • 2 triangles and 4 rectangles • 6 rectangles

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