প্রশ্ন সংশোধন করুন
প্রশ্ন:
The height of a box is 10cm, its upper and lower lids are square in shape. If the total surface area of the box is 250 cm^2, the length of its side is :
The height of a box is 10cm, its upper and lower lids are square in shape. If the total surface area of the box is 250 cm^2, the length of its side is :