Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole

Chapter 8 - Review Exercises - Page 385: 18b

Answer

108$^{\circ}$

Work Step by Step

I=$\frac{180(n-2)}{n}$ I=$\frac{180(5-2)}{5}$ I=36(3) I=108$^{\circ}$

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