What would be the side length of the smallest square plate on which a 40-cm chopstick can fit along a diagonal without any overhang? (Correct answer will get reward)

To answer this question you will use the Pythagorean Theorem. a^2+b^2=c^2. In this case a and b are the same because it is a square. So 2x^2=1600 (c^2 where c=40). Solve this equation (divide both sides by two and find the square root for both). Each side length should be approximately 28.3 cm.