Question

Which of the following is a ray as shown in the drawing?

Answer 1

`\overrightarrow{DA}`
`\overrightarrow{EB}`
`\overrightarrow{HK}`
`\overrightarrow{EF}`

Explanation:

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

A ray is named using its endpoint first, and then any other point on the ray that lies in the direction of the extension.

An arrow is placed on top, pointing in the infinite direction of the ray.

For example, the ray starting at point A and extending in the direction of point B is denoted as
`\overrightarrow{AB}`.

There are many rays in the given diagram. For example:

• 
  `\overrightarrow{DA}`
• 
  `\overrightarrow{EB}`
• 
  `\overrightarrow{HK}`
• 
  `\overrightarrow{EF}`