"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT

Description

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT

Part One Content: Basic Knowledge Key Points

Knowledge point 1 Straight lines, rays, line segments

1. Among the following expressions of straight lines, which one is correct (D)

A. Straight line ab B. Straight line Ab

C. Straight line A D. Straight line AB

2. Which of the following statements about straight lines, rays, and line segments is incorrect (D)

A. A straight line extends infinitely to both sides

B. The ray extends infinitely to one side

C. The line segment has two endpoints and a length

D. The line segment cannot be extended to both sides

3. If rays OA and OB are the same ray, then the following drawing is correct (B)

4. As shown in the figure, there are four points A, B, C, and D in the plane. Draw the picture according to the following sentences.

(1) Draw straight line AB, ray BD, and line segment BC;

(2) Connect AC and intersect line BD at point E.

Knowledge point 2 Basic facts about straight lines

5. Which of the following statements is correct (C)

A. Extended line segment AB and extended line segment BA have the same meaning.

B. Ray AB and ray BA are the same ray

C. A straight line can be drawn through two points, and only one straight line can be drawn

D. Extend straight line AB

6. When building a wall, construction workers often use thin ropes to pull a reference line between the two ends of the wall so that each layer of bricks is in a straight line. The basis for this is that "two points determine a straight line."

Line segments, rays and straight lines PPT, part 2: improvement of comprehensive capabilities

7. As shown in the figure, points A, B, C, and D are four points on the straight line l, then the total number of line segments in the figure is (D)

A.3 B.4

C.5 D.6

8. (Adapted) The following statement is accurate and standardized (D)

A. Straight lines a and b intersect at point m

B. Extend straight line AB

C. Extend ray AO to point B (A is the endpoint)

D. Lines AB and CD intersect at point M

9. In the same plane, the common points of three non-overlapping straight lines may be (C)

A.0, 1 or 2

B.0, 2 or 3

C. 0, 1, 2 or 3

D.1 or 3

10. As shown in the figure, the number of line segments, rays and straight lines in the figure are (D) respectively

A.5,3,1 B.2,2,1

C.3,3,4 D.3,2,1

Line segment, ray and straight line PPT, the third part: Expansion, exploration and breakthrough

16. Read the following table:

Answer the following questions:

(1) According to the rules in the table, guess what is the relationship between the total number of line segments N and the number of points on the line segment n (including the two endpoints of the line segment)?

(2) Solve the following practical problems based on the above relationship: There is a passenger bus traveling between A and B, stopping at three stations on the way. If the fares between any two stations are different, there are 10 different fares; it is necessary to prepare 20 types of tickets. (Write the answer directly)

Keywords: Beijing Normal University Edition seventh-grade mathematics PPT courseware free download, line segment ray straight line PPT download, basic plane graphics PPT download, .PPT format;

For more information about the PPT courseware "Basic Plane Figures, Line Segments, Rays and Straight Lines", please click on the Basic Plane Figures PPT Line Segments, Rays and Straight Lines PPT tab.

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT Courseware Download:

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT Courseware Download Part One Content: Study Guide 1. Understand the concepts of line segments, rays, and straight lines and their differences and connections in real situations. (Key Points) 2. Be able to use different methods Represents line segments, rays, straight lines...

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT Teaching Courseware:

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT Teaching Courseware Part One Content: Learning Objectives 1. Understand the concepts of line segments, rays, and straight lines and their differences and connections in real situations. (Key Points) 2. Be able to use different methods Represents line segments, rays, straight lines...

"Line segments, rays, straight lines" basic plane graphics PPT download:

"Line Segments, Rays, Straight Lines" Basic Plane Graphics PPT Download Part One Content: Learning Objectives 1. Understand the descriptive definitions and representation methods of line segments, rays, and straight lines in real situations, understand the properties of straight lines, and fully feel the meaning contained in life. rich and colorful..

File Info

Update Time: 2024-11-22

This template belongs to Mathematics courseware Beijing Normal University Edition Seventh Grade Mathematics Volume 1 industry PPT template

Preview