Answer
Euler's formula is valid.
Work Step by Step
Here, we have:
$Faces(F)=5$; $Vertices(V)=4$ and $Edges(E)=8$
We will write Euler's formula for two dimensional figures.
$F+V=E+1$
or, $5+4=8+1$
or, $9=9$
Euler's formula is valid.
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 11 - Surface Area and Volume - 11-1 Space Figures and Cross Sections - Practice and Problem-Solving Exercises - Page 693: 37
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