Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Part 8 - Multiple-Choice Practice Exam - Page 700: 16


According to four-dimensional geometry, the angles of a triangle add to $180^{\circ}$ sometimes.

Work Step by Step

An example of the interior angles adding to something other than $180^{\circ}$ is shown in Figure 36.14. This is discussed on page 695.
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