A square with a side length of 4cm has an area equal to its perimeter______ (judge right or wrong)

A square with a side length of 4cm has an area equal to its perimeter______ (judge right or wrong)

Because perimeter and area are not of the same kind, they cannot be compared. Therefore, a square with a side length of 4cm has an area equal to perimeter. This is wrong

A large square with 10 decimeters edge length is excavated, and a small square with 5 decimeters edge length is excavated to calculate the surface area and volume
There should be formulas. [it's a cube, not a square] is dug on the corner

There are two cases of surface area
First, dig 10 * 10 * 6 + 5 * 5 * 4 = 700 square decimeters from the center
Second, dig 10 * 10 * 6 = 600 square centimeters from the edge
Volume 10 * 10 * 10-5 * 5 * 5 = 875 cubic decimeters

The edge lengths of the two squares are 8 cm and 6 cm respectively. The ratio of their edge lengths is (), the ratio of their surface area is (), and the ratio of their volume is ()

The edge length of the two squares is 8 cm and 6 cm respectively. The ratio of edge length is (4:3), the ratio of surface area is (16:9), and the ratio of volume is (64:27)

The edge length of a cube is 8 cm, its total edge length (), surface area (), volume ()

The edge length of a cube is 8 cm
8 × 12 = 96 (CM)
Its surface area is:
8 × 8 × 6 = 384 (square centimeter)
Its volume is:
8 × 8 × 8 = 512 (cm3)
So:
The edge length of a cube is 8 cm, its total edge length is (96 cm), surface area is (384 square cm) and volume is (512 cubic cm)