The AB side is 3 cm 6 mm. Calculate its perimeter and area.

To calculate the perimeter and area.
If we know one side, then let’s say that it is a square, then to find the perimeter, we need to multiply the side by 4, and to find the area, we need to multiply the side by the side.
But in order for us to calculate all this, we need to translate everything into millimeters, and then add the millimeters.
1 cm is equal to 10 mm.
3 * 10 = 30;
30 + 6 = 36.
Let’s calculate the perimeter:
36 * 4 = 144.
Let’s calculate the area:
36 * 36 = 1296.
Answer: The perimeter is 144 mm.
The area is 1296 mm².