Pupil outcome: I can derive the formula for the cosine rule. Key learning points: - There are multiple ways to prove the cosine rule - When deriving (or proving) it is sometimes useful to derive other information

Pupil outcome: I can use the formula for the cosine rule and the sine rule. Key learning points: - The cosine rule is useful when you know three sides and an angle are involved - The sine rule is useful when you know two pairs of sides...

Pupil outcome: I can use my knowledge of trigonometry to solve problems. Key learning points: - Non right-angled trigonometry can be applied in various contexts - It has the potential to be applied whenever a triangle can be drawn

Pupil outcome: I can consider which approach is useful considering the properties/restrictions of a problem. Key learning points: - At this point, you have multiple strategies available - By analysing the problem, you can determine which...

Pupil outcome: I can construct a triangle given two of the required side lengths and the size of the angle between them. Key learning points: - The first side can be drawn accurately with a ruler - The compass should be used to indicate...

Pupil outcome: I can use my enhanced knowledge of surface area and volume to solve problems. Key learning points: - The surface area of any solid can be calculated by a known method. - The volume of any solid can be calculated by a known...

Pupil outcome: I can use my knowledge of loci and constructions to solve problems. Key learning points: - Your knowledge of loci can be applied to your knowledge of bearings - Your knowledge of loci can be used to help solve area problems

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

This video covers the basics of trigonometry. We cover the different equations you need to know to be able to fine missing sides, missing angles or areas of both non-right angle and right angle triangles.



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This video will discuss examples of application of sine and cosine laws.

The video is an electric presentation on how to solve problems in 3D by breaking them down into their 2D components. The focus is on using Pythagoras and trigonometry to find missing lengths and angles. The presenter provides...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

The area of a triangle is ½ the base X perpendicular height. If we don’t have the perpendicular height, there is another formula we can use: 1/2absinC which we look at in this video. We need two sides and the angle in between. This will...

In this video, the presenter explains how to use trigonometry to calculate missing angles and side lengths in non-right angle triangles. They describe two different methods, the sine rule and the cosine rule, and provide examples of when...

Not every triangle is a right-angle triangle, so we can't always use Pythagoras and SOHCAHTOA to find missing sides and missing angles. We instead use the sine rule or the cosine rule. They can both be used to find either missing...

This video provides an electric presentation on the cosine rule, which is a key concept in trigonometry used to calculate side lengths and angles in triangles. The presenter explains how to label triangles accurately and use two formulas...

The video is a tutorial on the cosine rule, a mathematical formula used to find missing side lengths and angles in triangles, particularly for non-right-angled triangles. The video highlights the difference between the cosine rule and...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

The angle between two vectors can be found by using the cosine rule in a clever way.

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

A challenging constrained motion example problem

Relative Acceleration Example 1

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...