GCSE Maths - All the Trigonometry Equations you Need To know! #119

This video provides an overview of trigonometry, focusing on its application to triangles. It explains how to determine the lengths of missing sides, sizes of missing angles, and areas of triangles. The video emphasizes the importance of selecting the correct equation for solving triangle problems, introducing a flow diagram to aid in this process. It distinguishes between right and non-right triangles, discussing relevant equations like Pythagoras, Sokor Toa, cosine rule, and sine rule. Additionally, it covers methods for calculating triangle areas based on available measurements. The video serves as an introduction, with further detailed videos planned for each equation.

What is the primary focus of trigonometry?

• Squares

• Circles

• Triangles

• Polygons

Which equation would you likely use for a right-angle triangle?

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

• Area Formula

If a triangle is not right-angled, which rule might you use?

• Area Formula

• Sokor Toa

• Pythagorean Theorem

• Cosine Rule

When calculating the area of a triangle, which condition allows you to use the base and height formula?

• When you can find the base and height

• When the triangle is equilateral

• When you know two sides and the angle between them

• When you know all three sides

What should you do if you know two sides of a triangle and the angle between them?

• Use the base and height formula

• Use the Pythagorean Theorem

• Use the bottom area formula

• Use the Law of Sines