Variable Parts Perspective

I discuss the idea of ratios using the variable parts perspective. I also show how to use a ratio table and a strip diagram to demonstrate this idea.

[mohammedbedru]

question assume we have to equal wooden plain and they are 1 meter apart you are viewing both of them from a meter distance the plains are placed in way you can see both of the so the perspective line becomes triangle how can we measure the ratio length perspective bn th first and second plain planks like how big does the first plank in proportion to the second point