A square paper has its each side d cm. How much paper will be wasted (in terms of d) if the largest possible circle is cut of the square?

Question

Accepted Answer

সঠিক উত্তর: । ব্যাখ্যা: paper এর area $ = d^2$. circle এর diameter $ = d$; radius $ = d/2$; area $ = \pi (d/2)^2 = \frac{\pi d^2}{4}$. অর্থাৎ, নষ্ট হবে $ = d^2 - \frac{\pi d^2}{4} = \frac{4d^2 - \pi d^2}{4}$.