| Category | Format | Size |
|---|---|---|
| Beijing Normal University Ninth Grade First Volume Mathematics | pptx | 6 MB |
"Can you prove them" Proof PPT courseware 4
Description
"Can you prove them" Proof PPT courseware 4
Properties of isosceles triangle:
Theorem: The two base angles of an isosceles triangle are equal
Corollary: The bisector of the vertex of an isosceles triangle, the midline on the base, and the height line on the base coincide with each other (three lines merge into one)
Conclusion 1: The three angles of an equilateral triangle are equal, and each angle is equal to 60°
Conclusion 2: The angle between the altitude on the waist of an isosceles triangle and the base is equal to half of the vertex angle.
Conclusion 3: The sum of the distances from any point on the base of an isosceles triangle to the two waists is equal to the height of one waist
Conclusion 4: The bisectors of the two base angles of an isosceles triangle are equal.
Conclusion 5: The altitude and midline of the two sides of an isosceles triangle are equal.
Determination theorem: A triangle with two equal angles is an isosceles triangle. Abbreviation: equiangular and equilateral sides.
think about it
(1) When an isosceles triangle meets what conditions, it becomes an equilateral triangle?
(2) Do you think an isosceles triangle with an angle equal to 600 is an equilateral triangle? Can you prove your conclusion? Share your proof ideas with your peers.
Theorem: An isosceles triangle with an angle of 60° is an equilateral triangle.
Known: As shown in the figure, in △ABC, AB=AC, ∠B=600.
Prove: △ABC is an equilateral triangle.
Proof: ∵AB=AC, ∠B=600 (known),
∴∠C=∠B=600. (Equal sides correspond to equal angles)
∴∠A=600 (Sum of interior angles of a triangle theorem)
∴∠A=∠B (equality property).
∴ AC=CB (equiangular opposite sides).
∴AB=BC=AC (equality property).
∴ △ABC is an equilateral triangle (equilateral triangle meaning).
Keywords: Proof courseware, can you prove them? courseware, Beijing Normal University edition ninth grade mathematics volume 1 PPT courseware, ninth grade mathematics slide courseware download, proof PPT courseware download, can you prove them PPT courseware download, .ppt format
For more information about the PPT courseware "Prove Can You Prove Them", please click the Prove ppt Can You Prove Them ppt tag.
"Can you prove them" Proof PPT courseware 3:
"Can you prove them?" Proof PPT courseware 3 Judgment axiom: Two triangles corresponding to three sides are congruent (SSS). Two sides and their angles correspond to two triangles congruent (SAS). Two angles and their angles are congruent (SAS). Two triangles whose sides correspond to are congruent (ASA). You...
"Can you prove them" Proof PPT courseware 2:
"Can You Prove Them" Proof PPT Courseware 2 Definition A triangle with two equal sides is called an isosceles triangle; the property theorem The two base angles of an isosceles triangle are equal. Abbreviation: equilateral opposite angles. Corollary of the property theorem Isosceles triangle top The bisector of an angle, the median of the base...
"Can you prove them" Proof PPT courseware:
"Can You Prove Them" Proof PPT courseware 1. Review and consolidate the relevant content of proof (1) last semester; 2. Understand the contents of several axioms that are the basis of proof, and master the basic steps and writing format of proof. 3. Experience the process of exploration-discovery-conjecture-prove...
File Info
Update Time: 2024-07-01
This template belongs to Mathematics courseware Beijing Normal University Ninth Grade First Volume Mathematics industry PPT template
"Can you prove them" Proof PPT courseware 4 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 "Can you prove them" Proof PPT courseware 4 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
"Can you prove them" Proof PPT courseware 4, 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.)
Preview
Related Search:
