Brainlag PlusChain several angle facts together, with a reason for each step, including algebra, ratios and polygons.
One fact at a time
Mark each angle you find on the diagram, and write its reason.
Typical chain: alternate angles give one angle, the isosceles triangle gives a second, angles in a triangle give the third.
The rest of this lesson and its 7 practice questions are in Plus.
Screen 1 of 2, free to read.
- 7 exam-style questions, marked as you go, each with a worked solution
- Anything you get wrong is saved to your flashcards