Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 6 - Polygons and Quadrilaterals - 6-1 The Polygon Angle-Sum Theorems - Lesson Check - Page 356: 3

Answer

$144, 36$

Work Step by Step

$(180n-360)/n$ = interior angle, $n$ =10 for a decagon Interior angle = 144 and interior + exterior = 180, so exterior angle = 36
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