   Chapter 9.CR, Problem 31CR ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
1 views

# Find the total surface area ofa) a regular dodecahedron with each face having an area of 6.5 in².b) a regular tetrahedron with each edge measuring 4 cm.

To determine

(a)

To find:

The total surface area of regular dodecahedron.

Explanation

Given:

Regular dodecahedron with each faces having an area of 6.5 in².

Calculation:

Let us consider the regular dodecahedron figure.

A regular dodecahedron has twelve faces that are congruent with pentagons.

Regular dodecahedron with each faces having an area of 6.5 in².

The total surface area of regular dodecahedron is,

S=126

To determine

(b)

To find:

The total surface area of regular tetrahedron.

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