• #### Similar Triangles in Circles and Right Triangles - Concept

##### Math›Geometry›Similarity
How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude.
• #### Corresponding Parts of Similar Triangles - Problem 3

##### Math›Geometry›Similarity
How to find the length of a median using similar triangles.
• #### Similar Triangles in Circles and Right Triangles - Problem 1

##### Math›Geometry›Similarity
How to find missing side lengths of triangles in a circle.
• #### Corresponding Parts of Similar Triangles - Problem 2

##### Math›Geometry›Similarity
How to find the length of an altitude using similar triangles.
• #### Corresponding Parts of Similar Triangles - Problem 1

##### Math›Geometry›Similarity
How to find the length of an angle bisector using similar triangles.
• #### Similar Triangles in Circles and Right Triangles - Problem 2

##### Math›Geometry›Similarity
How to find missing side lengths in a right triangle with an altitude drawn from the right angle.
• #### Corresponding Parts of Similar Triangles - Concept

##### Math›Geometry›Similarity
How to relate corresponding altitudes, medians and angle bisectors in similar triangles.
• #### Similar Triangles - Problem 2

##### Math›Pre-Algebra›Introductory Geometry
Using similar figures and proportionality to interpret a map that is drawn to scale
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• #### Similar Triangles - Problem 1

##### Math›Pre-Algebra›Introductory Geometry
Using proportionality to find the missing side length in similar figures
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• #### Similar Triangles - Concept

##### Math›Pre-Algebra›Introductory Geometry
Overview of similarity: congruent angles, proportional corresponding sides
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• #### Similar Triangles - Problem 3

##### Math›Pre-Algebra›Introductory Geometry
Using proportionality for indirect measurement of a flagpole
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• #### Properties of Similar Polygons - Problem 2

##### Math›Geometry›Similarity
How to find missing sides of similar triangles that share a side.
• #### Indirect Measurement - Concept

##### Math›Geometry›Similarity
How to use similar triangles to measure the height of objects.
• #### Indirect Measurement - Problem 1

##### Math›Geometry›Similarity
How to use a mirror and similar triangles to find the height of an object.
• #### Indirect Measurement - Problem 2

##### Math›Geometry›Similarity
How to use shadows and similar triangles to find the height of an object.
• #### Proportional Segments Between Parallel Lines - Concept

##### Math›Geometry›Similarity
How to prove two triangles are similar using a line parallel to a base.
• #### Similarity Shortcuts - Concept

##### Math›Geometry›Similarity
How to determine if two triangles are similar using a shortcut.
• #### Similarity Shortcuts - Problem 3

##### Math›Geometry›Similarity
How to determine if two triangles are similar using a shortcut.
• #### Similarity and Area Ratios - Problem 3

##### Math›Geometry›Similarity
How to find the area of similar triangles given one side length and one area.
• #### Proportional Segments Between Parallel Lines - Problem 1

##### Math›Geometry›Similarity
How to find a missing length in a triangle cut by a line parallel to a base.