Western Normal University Edition First Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press First Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
People's Education Press Third Grade Mathematics Volume 1
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
People's Education High School Mathematics Edition B Compulsory Course 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Hebei Education Edition Ninth Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Positional Relationship between Points and Circles" PPT
Part One: Observation
Our country's shooting athletes have won gold medals repeatedly in the Olympic Games and won honors for our country. The picture on the right is a schematic diagram of a shooting target. It is composed of many concentric circles (circles with the same center and different radii). You know how to hit different positions on the target. How are grades calculated?
question inquiry
Question 1: Observe the positional relationship between point A, point B, point C and the circle in the picture?
Point A is inside the circle,
Point B is on the circle,
Point C is outside the circle.
Question 2: Assume the radius of ⊙O is r, tell the relationship between the distance and radius between point A, point B, point C and the center O:
OA < r, OB = r, OC > r.
The positional relationship between points and circles PPT, the second part of the content: the positional relationship between points and circles
Let the radius of ⊙O be r, and the distance from the point to the center of the circle be d. but
Point P is in the circle ←→d<r;
Point P is on the circle ←→d = r;
Point P is outside the circle ←→d> r.
Exercise: It is known that the radius of the circle is equal to 5 cm, and the distance from the point to the center of the circle is:
A. 8 cm B. 4 cm C. 5 cm.
Please tell us the positional relationship between the point and the circle respectively.
The positional relationship between points and circles PPT, the third part: typical examples
For example: As shown in the figure, the sides of the rectangle ABCD are AB=3 cm and AD=4 cm.
(1) Take point A as the center and 3 cm as the radius to construct a circle A. What is the positional relationship between points B, C, D and circle A?
(2) Take point A as the center and 4 cm as the radius to construct a circle A. What is the positional relationship between points B, C, D and circle A?
(3) Take point A as the center and 5 cm as the radius to construct a circle A. What is the positional relationship between points B, C, D and circle A?
Example 1, as shown in the figure, it is known that the sides of the rectangle ABCD are AB=3 cm and AD=4 cm.
(1) Take point A as the center and 4 cm as the radius to construct a circle A. What is the positional relationship between points B, C, D and circle A?
(2) If a circle A is constructed with point A as the center, so that at least one point among the three points B, C, and D is inside the circle, and at least one point is outside the circle, then the range of the radius r of circle A is What?
The positional relationship between points and circles PPT, part 4 content: ability improvement
1. The radius of ⊙O is r=10cm, the distance from the center of the circle to the straight line L is OM=8cm, there is a point P on the straight line L, PM=6cm, then point P ( )
A is inside ⊙O B is outside ⊙O
C on ⊙O D cannot be determined
2. The radius of ⊙O is 6, the coordinates of the center O are (0, 0), and the coordinates of point P are (4, 5), then the positional relationship between point P and ⊙O is ( )
A is inside ⊙O B is outside ⊙O
C is on ⊙O D is on ⊙O or within ⊙O
3. The distance between point P and the nearest point on the definite circle is 4cm, and the distance between the farthest point is 9cm. Then the radius of the circle is ( )
A 2.5cm B 6.5cm
C 2.5cm or 6.5cm D 13cm
Keywords: Free download of mathematics PPT courseware for the second volume of the ninth grade of Hebei Education Edition, PPT download of the positional relationship between points and circles, .PPT format;
For more information about the "Positional Relationship between Points and Circles" PPT courseware, please click on the "Positional Relationship between Points and Circles" ppt tag.
File Info
Update Time: 2024-11-23
This template belongs to Mathematics courseware Hebei Education Edition Ninth Grade Mathematics Volume 2 industry PPT template
"Positional Relationship between Points and Circles" PPT Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Positional Relationship between Points and Circles" PPT is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Positional Relationship between Points and Circles" PPT, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)