SOH CAH TOA - Sin, Cos & Tan Lesson

Overview

This lesson focuses on using the SOHCAHTOA rules, an essential tool in trigonometry, to find missing side lengths and angles in right-angled triangles. It is part of the GCSE Maths AQA Higher course.

Key Concepts

• SOHCAHTOA is a mnemonic to remember the three main trigonometric ratios:
  • Sine (Sin): Opposite / Hypotenuse
  • Cosine (Cos): Adjacent / Hypotenuse
  • Tangent (Tan): Opposite / Adjacent

Learning Objectives

• Understand how to apply the SOHCAHTOA rules effectively in solving problems related to right-angled triangles.
• Gain the ability to calculate unknown side lengths and angles using the above trigonometric ratios.

Lesson Structure

• Duration: 5 minutes
• Learning Options:
  • All at once: Review all questions in one go.
  • Focus: Tackle one question at a time for concentrated learning.

Additional Features

• The lesson is designed for interactive learning, requiring JavaScript to be enabled for full functionality.
• Completing the lesson will earn you +50 XP, contributing to course progression.

Conclusion

Mastering the SOHCAHTOA rules is crucial for solving right-angled triangle problems in mathematics, particularly at the GCSE level. This lesson provides a concise yet comprehensive insight into their applications.