Types of Angles
Angle Names Understanding
Acute, Right and Obtuse Explained (understanding)
Angles Glossary
Using a protractor to measure angles (interactive)
Understanding angles (interactive webpage)
Understanding angles (review webpage)
Practice:
Measuring angles (you'll need a protractor)
Measuring angles (online protractor provided)
Angle Types (practice 1)
Angle Types (practice 2)
Practice drawing angles (online interactive)
Angles on Parallel Lines
Understanding
Maths is Fun Angles on Parallel Lines (website)
Khan Academy: Transversals and Parallel Lines (video)
Khan Academy: Finding missing angles on parallel lines (video)
Practice:
BBC Bitesize Parallel Lines (activity)
Khan Academy Parallel Lines practice
Proof:
Proving Lines are Parallel (video 1)
Proving Lines are Parallel (video 2)
Practice Proving lines are parallel (questions)
180 degrees in a Triangle
Explore 180 degrees in triangle
Practice 180 degrees in a triangle
Proof Solution Here (video)
