Paper 2 · Trigonometry
⏱ Tested in 5+ recent exam questions
Lesson 1 of 9
LCOL Trigonometry 1: Pythagoras Theorem
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/yrYou’ll learn
- In a right-angled triangle the hypotenuse H is the longest side
- O²+A²=H²
- To undo a square, take the square root of both sides
Formula used
O² + A² = H² (Pythagoras)
On page 20 of the log tables — read it off, don’t memorise.Most recent exam questions
- 2026 P2 Q8(a)(i)
- 2025 P2 Q5(b)(i)
- 2024 P2 Q8(a)(i)
- 2023 P2 Q5(d)
- 2023 P2 Q7(a)(iii)
💬 Stuck on something in this lesson?
Send your question with this lesson’s name attached — you’ll get a reply by email.