CK-12 Geometry-Concepts

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 11. Surface Area and Volume


Example C


Describe the cross section formed by the intersection of the plane and the solid.


The cross-section is a circle.


Watch this video for help with the Examples above.


MEDIA


Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/52639

CK-12 Foundation: Chapter1CrossSectionsandNetsB


Concept Problem Revisited


The net of the first shape is a regular tetrahedron and the second is the net of a regular octahedron.


Vocabulary


Across-sectionis the intersection of a plane with a solid. Anetis an unfolded, flat representation of the sides of a
three-dimensional shape.


Guided Practice


Describe the shape formed by the intersection of the plane and the regular octahedron.






2.

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