Jee Main
Application Of Derivatives
JEE Main 2023 (Online) 10th April Morning Shift
MCQ+4 / -12023
A square piece of tin of side 30 cm is to be made into a box without top by cutting a square from each corner and folding up the flaps to form a box. If the volume of the box is maximum, then its surface area (in cm\(^2\)) is equal to :