GCSE Secondary Maths Age 13-17 - Pythagoras & Trigonometry: Area of a Triangle - Explained

The video tutorial explains how to calculate the area of a non-right angled triangle using the sine rule. It begins with setting up the problem by identifying the given sides and angles. The instructor then uses the sine rule to find the unknown angles, followed by calculating the area of the triangle. The tutorial concludes with a discussion on the marks allocation for the problem and the importance of understanding the sine rule for solving such geometry problems.

What is the significance of the sine rule in this problem?

What is the final area of triangle RPQ rounded to three significant figures?

What would happen to the area calculation if angle PQR were obtuse?