Answer
A tetrahedron has 4 faces that are equilateral triangles.
Work Step by Step
A tetrahedron is a type of regular solid. It has 4 congruent equilateral triangle faces that come together to form a pyramid.
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 9 - Review Exercises - Page 447: 26b
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