Question

Which of the following statements is true?

• A. Every ray has a definite length.
• B. Every line has a definite length.
• C. Every line segment has a definite length.
• D. Every point has a definite length.

Answer 1

The correct option is C Every line segment has a definite length.

A ray has a fixed starting point and extends till infinity (it has no end point).
$\therefore$ A ray has no definite length.

A line extends on both sides indefinitely. It has no end points.
$\therefore$ A line has no definite length.

A point refers to a location. It has no dimensions.

A line segment is a part of a line. It has two fixed end points.
$\therefore$ A line segment has a definite length.