There are several different methods to make cuboids with different shapes by using 1 cubic centimeter 12 cube. What is their surface area?

There are three different kinds of swings.

The first type: 12 blocks are arranged in a row, so the length 12cm, width 1cm and height1cm;

Surface area:12×1× 4+/kloc-0 /×1× 2 = 50 (cm? ) ..................... has the largest surface area at this time.

The second type: 6 in a row, put in 2 rows, so that the length is 6cm, the width is 2cm, and the height is 1cm.

Surface area: (6× 2+6×1+1× 2) × 2 = 40 (cm? )

The third type: four rows, three rows, so that the length is 4cm, the width is 3cm, and the height is1cm;

Surface area: (4× 3+4×1+3×1)× 2 = 38 (cm? ......................... has the smallest surface area at this time.