Answer:
Step-by-step explanation:


Answer:
From top to bottom:
3
7
6
12
Step-by-step explanation:
You just simply add the number in the top row and the number in the column together.
2 + 1 = 3
4 + 3 = 7
2 + 4 = 6
6 + 6 = 12
The width of my living room is 1/2 the length :

The area of my living room :

Answer: 288
Ok done. Thank to me :>
It should be 3cm if I did it right