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This page provides a list of educational videos related to Similar Triangles. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Similar Triangles.
Similar triangle example problems | Similarity | Geometry | Khan Academy
By Khan Academy
Multiple examples looking for similarity of triangles. All Khan Academy content is available for free at www.khanacademy.org
Triangle Similarity - AA SSS SAS & AAA Postulates, Proving Similar Triangles, Two Column Proofs
By The Organic Chemistry Tutor
This geometry video tutorial provides a basic introduction into triangle similarity. it explains how to use two column proofs in order to prove if two triangles are similar using the mostly the AA postulates. Other triangle similarity postulates mentioned are the AAA, SSS, and SAS postulates. Theorems used in this video include the base angle theorem, theorems associated with parallel lines, alternate interior angle theorem, vertical angles, reflexive property, definition of an altitude, right angle congruence, and more. This geometry video contains plenty of examples and practice problems on triangle similarity.
Similar triangle basics | Similarity | Geometry | Khan Academy
By Khan Academy
Triangles are similar when all three of the corresponding angles are the same and the sides are simply "scaled-up" or "scaled-down" versions of each other.
Similar triangles 1
By Khan Academy
Sal reviews all the different ways we can determine that two triangles are similar. This is similar to the congruence criteria, only for similarity!
Similar triangles 2
By Khan Academy
Sal reviews all the different ways we can determine that two triangles are similar. This is similar to the congruence criteria, only for similarity!
Similar triangles 2
By Khan Academy
Multiple examples where Sal analyzes the similarity of triangles.
Proving Triangles are Similar - YourTeacher.com - Geometry Help
By yourteachermathhelp
Students learn the following theorems related to similar triangles. If an angle of one triangle is congruent to an angle of another triangle, and the lengths of the sides that include each angle are in proportion, then the triangles are similar (Side-Angle-Side Similarity Theorem, or SAS Similarity Theorem). If the lengths of the sides of two triangles are in proportion, then the triangles are similar (Side-Side-Side Similarity Theorem, or SSS Similarity Theorem). Students are then asked to determine whether given triangles are similar based on these theorems.
Solving Similar Triangles and Proportions
By MrCaryMath
YouTube presents Solving Similar Triangles and Proportions, an educational video resource on math.
Proof of Pythagorean Theorem using similar triangles
By Matt Stryker
Proof of Pythagorean Theorem using similar triangles
Solving similar triangles 2
By Khan Academy
Sal solves two problems where a missing side length is found by proving that triangles are similar and using this to find the measure.
Solving similar triangles 1
By Khan Academy
Sal solves two problems where a missing side length is found by proving that triangles are similar and using this to find the measure.
Solving problems with similar and congruent triangles
By Khan Academy
Sal uses the similarity of triangles and the congruence of others in this multi-step problem to find the area of a polygon.
Geometry - 10 - Proving Triangles are Similar
By thenewboston
Youtube Presents Geometry - 10 - Proving Triangles are Similar an educational video resources on math.
Geometry - 10 - Proving Triangles are Similar
By thenewboston
Youtube Presents Geometry - 10 - Proving Triangles are Similar an educational video resources on math.
Geometry - 10 - Proving Triangles are Similar
By thenewboston
Youtube Presents Geometry - 10 - Proving Triangles are Similar an educational video resources on math.
How to Apply Postulate 13 to Similar Triangles
By Khan Academy
Video uses an electronic black board with different colored pens. This video is an introduction to similar triangles. The person discusses the meaning of the term similar then goes on to discuss similar triangles (they have all the same angles), and why they are considered similar (ratio of corresponding sides is the same). Video then gives examples to help students understand the terms used and how to find similar angles. Good quality video. Good for middle elementary and middle school students.
How to Apply Postulate 13 to Similar Triangles
By Khan Academy
Video uses an electronic black board with different colored pens. This video is an introduction to similar triangles. The person discusses the meaning of the term similar then goes on to discuss similar triangles (they have all the same angles), and why they are considered similar (ratio of corresponding sides is the same). Video then gives examples to help students understand the terms used and how to find similar angles. Good quality video. Good for middle elementary and middle school students.
How to Solve Similar Triangles Applications: Flagpole Problem
By Math Class with Terry V
YouTube presents How to Solve Similar Triangles Applications: Flagpole Problem, an educational video resource on math.
