Question

select the correct answer from each drop - down menu.
how are rays and angles related?
a ray
and an angle is
related to the length of its sides. so, the measure

Explanation:

First Drop - down (Definition of a Ray)

A ray is defined as a part of a line that has one endpoint and extends infinitely in one direction. A line segment has two endpoints, a line extends infinitely in both directions, and a "part of a line bounded on both sides" is a line segment. So the correct description for a ray is "is part of a line that has an endpoint and extends infinitely in one direction".

Second Part (Relation of Angle to Ray and Its Measure)

An angle is formed by two rays (the sides of the angle) with a common endpoint (the vertex). The measure of an angle is not related to the length of its sides (since rays are infinite in length), but rather to the amount of rotation between the two rays. So an angle is formed by two rays, and the measure of an angle is not related to the length of its sides (the rays), it is related to the angle of rotation between the two rays.

For the first drop - down, the correct option is "is part of a line that has an endpoint and extends infinitely in one direction". For the angle - related part, an angle is formed by two rays, and the measure of an angle is independent of the length of its sides (the rays) and depends on the angle between the two rays.

If we are only considering the first drop - down (the definition of a ray) for the answer:

Answer:

is part of a line that has an endpoint and extends infinitely in one direction