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
People's Education Press Third Grade Mathematics Volume 1
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Hebei Education Edition 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 Seventh Grade Mathematics Volume 2
People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Fifth Grade Mathematics Volume 2
Hebei Education Edition Fourth Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 2
Category | Format | Size |
---|---|---|
Beijing Normal University Ninth Grade First Volume Mathematics | pptx | 6 MB |
Description
"Exploring the Conditions for Similarity of Triangles" Similarity of Figures PPT Courseware 5
review
1.What are similar triangles? What are the characteristics of similar triangles?
2. How to determine whether two triangles are similar?
3. As shown in the picture, CD is the height of the hypotenuse AB of the right triangle ABC. Are there any similar triangles in the picture?
If two sides of one triangle are proportional to two sides of another triangle and their angles are equal, are the two triangles similar?
Conclusion: Two triangles with proportional sides and equal angles are similar.
In △ABC and △A′B′C′, it is known that: AB=6 cm, BC=8 cm, AC=10 cm, A′B′=18 cm, B′C′=24 cm, A′C ′=30 cm.
Try to determine whether △ABC and △A′B′C′ are similar, and explain the reason.
Given △ABC and △A’B’C’, determine whether they are similar based on the following conditions.
(1)∠B=∠B’=75°, ∠C=50°, ∠A’=55°
(2) ∠A=45°, AB=12cm, AC=15cm
∠A’=45°, A’B’=16cm, A’C’=20cm
(3) AB=12cm, BC=15cm, AC=24cm
A’B’=16cm, B’C’=20cm, A’C’=30cm
summary
How to determine if two triangles are similar:
(1) Two triangles with equal angles are similar.
(2) Two triangles with proportional sides and equal angles are similar.
(3) Two triangles whose three sides correspond to proportions are similar.
Keywords: teaching courseware for similarity of graphics, teaching courseware for exploring the conditions of similarity of triangles, Beijing Normal University edition ninth grade mathematics volume 1 PPT courseware, download of ninth grade mathematics slide courseware, downloading PPT courseware for similarity of graphics, exploring conditions for similarity of triangles PPT courseware Download, .ppt format
For more information about the PPT courseware "Exploring the Similarity of Conditional Figures with Similar Triangles", please click the Similarity ppt tag of "Exploring the Similarity of Conditional Figures with Similar Triangles".
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 6:
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 6 Review the past and learn new things 1. What are similar triangles? Two triangles in which the angles are equal and the sides are proportional are called similar triangles. 2. What are congruent triangles? The triangles correspond to equals, and the three sides correspond to...
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 5:
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 5 Review and Thinking [Congruent Triangles] Two triangles with the same shape and equal size. That is: a triangle corresponds to three equal sides and two equal triangles are congruent. [Similar triangles] have the same shape and size..
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 4:
"Exploring the Conditions for Similarity of Triangles" Similar Figures PPT Courseware 4 Learning Objectives 1. Preliminarily master the conditions for determining the similarity of two triangles. 2. Experience the exploration process of two triangles with similar conditions to further develop students' exploration and communication abilities, as well as oral, hands-on,...
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Update Time: 2024-10-20
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