Question

formula of area of 4 wall

Answer 1

For a square or rectangular room, you will first need to measure the length and then the width of the room. Then multiply the length and width.

Length x Width = Area.

So, if your room measures 11 feet wide x 15 feet long, your total area will be 165 square feet.

Hope it helps you ..
Please mark as brainlist !!

Answer 2

Answer: 2(l+b) h

Step-by-step explanation: