GCSE Secondary Maths Age 13-17 - Algebra: Area of a Triangle - Explained

The video tutorial explains how to solve for x in a triangle problem using trigonometry and algebra. It starts by setting up the problem with given measurements and angles, then uses the sine rule for the area of a triangle to form an equation. The tutorial proceeds to solve a quadratic equation using the quadratic formula, providing a step-by-step guide to reach the final answer. The importance of understanding the formulas and practicing similar problems is emphasized, with a breakdown of the marking scheme for the question.

What are the key steps to solve the quadratic equation derived from the problem?

Why is the negative value for x rejected in the solution?

What is the final value of x calculated in the problem?