Paper 2 · Proofs Lesson 10 of 16

Proof 10 – Proof of theorem 6

This tutorial is for members

Read the lesson notes free below — subscribe to watch the full worked video and download the PDF.

Subscribe for full access · €199/yr

You’ll learn

  • Prove Theorem 6: an exterior angle equals the sum of the two interior opposite angles

💬 Stuck on something in this lesson?

Send your question with this lesson’s name attached — you’ll get a reply by email.