The side length of a square is 8 cm. If the side length is increased by 2 cm, how many square centimeters will the area be increased?

The side length of a square is 8 cm. If the side length is increased by 2 cm, how many square centimeters will the area be increased?

36 cm

There is a rectangular sheet of iron, 60 cm long and 40 cm wide. At the four corners of this sheet of iron, cut out a small square with a side length of 8 cm, and then weld it into a uncovered sheet
Cuboid box, find the cuboid box volume. Small square side length 8 cm, rectangle length 60 cm, width 40 cm

The length of this cuboid box: 60-8 × 2 = 44 cm
The width of this cuboid box: 40-8 × 2 = 24 cm
The height of the cuboid box: 8 cm
The cuboid box volume: 44 × 24 × 8 = 8448 CC = 8448 ml

In a 18 cm long, 8 cm wide rectangular sheet iron, cut it into the same two pieces, and then put together a square, how to cut
Don't overlap when spelling

According to the picture below, you can cut it and put it together. If the picture is not good, you can use white paper to size it strictly, cut it and put it together