Question

select the correct answer.
which statement best defines an angle?
a. two lines that share a common line segment called the vertex
b. two lines that intersect at a point called the vertex
c. two rays that share a common endpoint called the vertex
d. two line segments that intersect at a point called the vertex

Explanation:

An angle is formed by two rays (not lines or line segments) that start from the same common endpoint, which is defined as the vertex. Option A incorrectly identifies the vertex as a line segment. Option B uses lines instead of rays, which extend infinitely in both directions and do not form a bounded angle in the standard definition. Option D uses line segments, which have two endpoints and do not form the open, extendable structure of an angle.

Answer:

C. two rays that share a common endpoint called the vertex