Distance Learning – Trigonometry with Non-Right-Angled Triangles

Each lesson will take about one hour complete. Start by watching the video then click the Begin Lesson.

You will need to login to your individual or school membership account to access the online lesson and worksheet.

Take your time to work through questions on the first three slides. Make sure to check your answers as you go by clicking the ANS buttons next to the questions.

The worksheet can be used for extra practice if you need. There are also some challenge questions included to extend your learning.

The fourth slide presents a final challenge to stretch your learning ready for the next lesson.

1. Using the Sine rule

2. More problems using the Sine rule

Revising the Sine Rule

3. Finding angles with the Cosine rule

4. Finding lengths with the Cosine rule

5. More problems with the Cosine rule

Revising the Cosine Rule

6. Area of non-right angled triangles

Mr Mathematics Blog

Planes of Symmetry in 3D Shapes

Planes of Symmetry in 3D Shapes for Key Stage 3/GCSE students.

Use isometric paper for hands-on learning and enhanced understanding.

GCSE Trigonometry Skills & SOH CAH TOA Techniques

Master GCSE Math: Get key SOH-CAH-TOA tips, solve triangles accurately, and tackle area tasks. Ideal for students targeting grades 4-5.

Regions in the Complex Plane

Explore Regions in the Complex Plane with A-Level Further Maths: inequalities, Argand diagrams, and geometric interpretations.