The packaging of a gift is a closed cube box with a surface area of 216cm square. The first thing to do is to make a cube box, which is smaller than the original box The volume of the cube box is 127cm square. How long is the side of the box

The packaging of a gift is a closed cube box with a surface area of 216cm square. The first thing to do is to make a cube box, which is smaller than the original box The volume of the cube box is 127cm square. How long is the side of the box

1. Square surface area formula: S = 6A ^ 2, so edge length a = √ (s / 6) = √ (216 / 6) = 6cm
2. The big cube is 127 larger than the small cube. Let the edge length of the big cube be B
Then a ^ 3 + 127 = B ^ 3, so B = (a ^ 3 + 127) to the third power = 7 cm
The edge length of the large box is 7cm

How many square centimeters of wrapping paper should be used to pack a square gift box with 25cm edge length

Wrapping paper = 25 × 25 × 6 = 3750 square centimeter

A cube gift box, edge length 1. How many square decimeters of wrapping paper does it need to pack this gift box at least?

(1.5×1.5)×6
=2.25×6
=13.5 (square decimeter)