GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Ratio - Explained

The video tutorial explains how to use a scale model to determine the real-life size of an object. It begins by defining the scale as 1:200, meaning one unit on the model equals 200 units in reality. The tutorial then demonstrates how to calculate the real length of a plane from a model measurement of 17 centimeters, resulting in 3400 centimeters or 34 meters. The process includes converting centimeters to meters and concludes with the final answer and marking criteria.

What does the scale of 1 to 200 mean in terms of model measurements?

If the model plane is 17 centimeters, what is its length in real life?

Explain the calculation process to find the length of the real plane from the model.

How do you convert centimeters to meters in this context?

What is the final answer for the length of the part on the real plane in meters?