English: So,the proportionality of x and l will also remain in w₁and w. So, from this I can just write w₁ will be equal $x\frac{w}{l}\ $ So, I can get 1 w in terms of w. So, from this, I can write an equation for the area So, the area will be $\frac{1}{2}w_{1}x$ and w₁, we have written in terms of x and w which is written here.
Telugu: కాబట్టి వైశాల్యం $\frac{1}{2}w_{1}x$ మరియు w₁, మనం ఇక్కడ x మరియు w పరంగా వ్రాసాము.