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Course: Class 7 (ICSE basics) > Unit 11
Lesson 2: Triangle angles- Angles in a triangle sum to 180° proof
- Triangle exterior angle example
- Find angles in triangles
- Find angles in isosceles triangles
- Worked example: Triangle angles (intersecting lines)
- Worked example: Triangle angles (diagram)
- Finding angle measures between intersecting lines
- Finding angle measures using triangles
- Triangle angle challenge problem
- Triangle angle challenge problem 2
- Ordering triangle sides and angles example
- Ordering triangle sides and angles
- Triangle angles review
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