High school geometry
Similarity videos
Explore the principles of similarity in geometry, mastering scale factors, and proportional reasoning to understand shapes' sizes and configurations at the high school level.
200+ videos and assessments
Standards aligned
Vetted by experts
Definitions of similarity
VIDEOS
Solving similar triangles
VIDEOS
Angle bisector theorem
VIDEOS
Proving relationships using similarity
VIDEOS
Exploring medial triangles
Khan Academy
•6th - 10th Grade
•10 Qs
Pythagorean theorem proof using similarity
Khan Academy
•6th - 10th Grade
•10 Qs
Proof: Parallel lines divide triangle sides proportionally
Khan Academy
•9th - 12th Grade
•10 Qs
Proving slope is constant using similarity
Khan Academy
•9th - 12th Grade
•10 Qs
Proof: perpendicular lines have opposite reciprocal slopes
Khan Academy
•8th - 10th Grade
•10 Qs
Proof: parallel lines have the same slope
Khan Academy
•8th - 12th Grade
•10 Qs
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