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McGraw Hill Glencoe Geometry, 2012

MH

McGraw Hill Glencoe Geometry, 2012 View details

2. Logic

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Exercise 56 Page 106

Are all the surfaces flat? What does this tell us about whether or not it is a polyhedron?

Solid	Bases	Faces	Edges	Vertices
Polyhedron, Pyramid	$□ D E F G$	$□ D E F G,$ $△ D E H,$ $△ E F H,$ $△ G F H,$ $△ D G H$	$\overline{D E},$ $\overline{E F},$ $\overline{F G},$ $\overline{G D},$ $\overline{D H},$ $\overline{E H},$ $\overline{F H},$ $\overline{G H}$	$H, D, E, F, G$

Practice makes perfect

Let's begin by reviewing the definition of a polyhedron.

A polyhedron is a solid composed of all flat surfaces that enclose a single region of space.

Examining the given solid, we can see that it meets this definition.

Subchapter links

Check Your Understanding p.103

H.O.T. Problems p.105

Standardized Test Practice p.106

Spiral Review p.106

Skills Review p.106