QQuestionMathematics
QuestionMathematics
Which best defines a ray?
A. Part of a line that has an endpoint and extends infinitely in one direction
B. Two lines that share the same endpoint
C. Part of a line that has two endpoints and can be measured
D. Part of a line that is two points
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Answer
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Step 1:I'll solve this step-by-step with precise mathematical formatting:
Step 2:: Understand the Definition of a Ray
A ray is a geometric object with specific characteristics: - It has exactly one fixed endpoint - It extends infinitely in one direction from that endpoint - It is a portion of a line that starts at a single point and continues endlessly in one direction
Step 3:: Analyze the Given Options
Let's carefully examine each option: A. Part of a line that has an endpoint and extends infinitely in one direction B. Two lines that share the same endpoint C. Part of a line that has two endpoints and can be measured D. Part of a line that is two points
Step 4:: Evaluate the Characteristics
- Option A perfectly describes a ray - Option B describes intersecting lines, not a ray - Option C describes a line segment, which has two endpoints - Option D is not a complete geometric description
Step 5:: Logical Reasoning
- The ray extends from $$A$$ through $$B$$ infinitely
- A is the fixed endpoint
Final Answer
A is the correct definition of a ray.
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