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Angles and triangles

Complementary and supplementary angles, parallel lines and transversals, triangles and polygons

The Angles and triangles unit belongs to the Geometry and trigonometry section of Math Mental and has 16 lessons: complementary and supplementary angles, parallel lines and transversals, triangles and polygons.

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Lessons in this unit

  1. Complementary angles Lesson, 8 questions
  2. Supplementary angles Lesson, 8 questions
  3. Vertical angles Lesson, 8 questions
  4. Complementary and supplementary with x Lesson, 8 questions
  5. Parallel lines and a transversal Lesson, 8 questions
  6. Alternate interior angles with x Lesson, 8 questions
  7. Same-side angles with x Lesson, 8 questions
  8. Practice: angles Practice, 10 questions
  9. Angle sum of a triangle Lesson, 8 questions
  10. Exterior angle Lesson, 8 questions
  11. Isosceles triangle Lesson, 8 questions
  12. Classifying triangles Lesson, 8 questions
  13. Angle sum of polygons Lesson, 8 questions
  14. Regular polygons Lesson, 8 questions
  15. Review: triangles and polygons Practice, 10 questions
  16. Unit test 12 questions

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