
Concept explainers
To tell: whether

Answer to Problem 38CE
Yes, we can conclude Rays OA and OB are opposite rays because point O is between points A and B.
Explanation of Solution
Given information:
Rays are said to be opposite rays if they share a common endpoint O, and that endpoint is between (collinear with and in between) another point A, B on each ray.
Rays OA and OB point in opposite directions. Hence, they are 180° apart and form a straight
A straight line is a basic assumption of geometry. It's one of the undefined terms.
Chapter 1 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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