SaiBook.us Geometry

Example

Title: Line & Rays

Grade: 4-a Lesson: S1-L2

Explanation: The best way to understand geometry is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Identifying the point of intersection between these lines?

Step 1a

The lines represented in this image, namely Line A and Line B [A ∥ B], are parallel to each other. As a result, they are called parallel lines.

$1a$

Explanation:

The lines in the picture are parallel, [A ∥ B].

Step 1b

Lines A and C intersect at point x, making them intersecting lines.

Explanation: When lines A and C cross, it’s called the point of intersection or point x.

Step 1c

Lines B and C intersect at point y.they are called intersecting lines.

Explanation: When lines B and C cross, it’s called the point of intersection or point y.

Identify the rays shown in the provided image.

Step 2a

In this given image, the endpoint of the ray is Z.

$2a$

Explanation: According to this image, the endpoint of the ray is Z.

Step 2b

In the figure, there are two rays named Ray ZB and Ray ZT.

They both start from point Z and move in opposite directions, creating a straight angle.

Explanation: At point Z, Ray ZB and Ray ZT align perfectly in a straight line.