Angle relationships
Triangle angles
Discover how to identify and calculate triangle angles, understand their relationships, and solve problems involving angle sums and properties, strengthening geometry skills.
200+ videos and assessments
Standards aligned
Vetted by experts
VIDEOS
Triangle exterior angle example
Khan Academy
•7th - 10th Grade
•10 Qs
Angles in a triangle sum to 180° proof
Khan Academy
•6th - 10th Grade
•10 Qs
Isosceles & equilateral triangles problems
Khan Academy
•6th - 8th Grade
•10 Qs
Worked example: Triangle angles (diagram)
Khan Academy
•6th - 10th Grade
•10 Qs
Worked example: Triangle angles (intersecting lines)
Khan Academy
•6th - 9th Grade
•10 Qs
Triangle angle challenge problem
Khan Academy
•6th - 10th Grade
•6 Qs
Triangle angle challenge problem 2
Khan Academy
•6th - 8th Grade
•10 Qs
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