GCSE Secondary Maths Age 13-17 - Geometry & Measures: Area - Triangles and Quadrilaterals - Explained

The video tutorial explains how to calculate the area of a right-angled triangle with sides in the ratio of 3:4:5. It begins by sharing the total perimeter of 72 cm in the given ratio to find the actual side lengths. The lengths are calculated as 18 cm, 24 cm, and 30 cm. Using these measurements, the area is determined by multiplying the base and height and dividing by two, resulting in an area of 216 square centimeters. The tutorial also discusses the allocation of marks for each step in the problem-solving process.

Explain the process of scaling the triangle using the ratio provided.

What is the final area of the triangle calculated in the text?