Three–Dimensional Figures Today you will learn to: identify and classify three-dimensional figures describe plane sections of right rectangular prisms.

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Presentation transcript:

Three–Dimensional Figures Today you will learn to: identify and classify three-dimensional figures describe plane sections of right rectangular prisms and right rectangular pyramids. M07.C-G.1.1.4: Describe the two-dimensional figures that result from slicing three-dimensional figures.

What are three-dimensional figures? A three-dimensional figure is an object that has length, width, and height, which means that it can be measured in three directions. A three-dimensional figure encloses a part of space; in other words it can hold something (water, air, etc.)

Features of a Three- Dimensional Figure Faces Edge Vertex Edge- formed by two faces of a 3-D figure sharing a side Vertex (plural: vertices)- the point at which three or more edges meet Face- the flat surface of a figure

Two main types of Three- Dimensional Figures Prism: Has at least three faces that are rectangles Has two congruent faces on the top and bottom called bases The shape of the base tells what type of prism the figure is Pyramid: Has at least three faces that are triangles Has only one base The shape of the base tells what type of pyramid the figure is Rectangular Prism Rectangular PyramidTriangular Pyramid

Plane Intersections Rectangular Prism Rectangular Pyramid