Triangle Similarity - AA SSS SAS & AAA Postulates, Proving Similar Triangles, Two Column Proofs

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.

Polygons:
   • Polygons  

Quadrilaterals:
   • Quadrilaterals - Geometry  

Skew Lines:
   • Skew Lines, Perpendicular & Parallel ...  

Points, Lines, Planes, & Segments:
   • Points, Lines, Planes, Segments, & Ra...  

Triangles - Basic Introduction:
   • Triangles - Basic Introduction, Geometry  

Number of a Diagonals In a Polygon:
   • Number of Diagonals In a Regular Poly...  

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Ratios and Proportions - Means Extreme:
   • Ratios and Proportions, Arithmetic & ...  

Similar Triangles:
   • Similar Triangles  

Similar Triangles - Enlargement Ratios:
   • Similar Triangles and Figures, Enlarg...  

Triangle Proportionality Theorem:
   • Triangle Proportionality Theorem, Sid...  

Altitude on Hypotenuse Theorem:
   • Altitude on Hypotenuse Theorem - Geom...  

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Pythagorean Theorem:
   • Pythagorean Theorem  

The Distance Formula:
   • Distance Formula  

Distance Between 2 Points - 3D:
   • How To Find The Distance Between 2 Po...  

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