Its area lh.
Area of four walls of rectangular room formula.
The area of doors and windows are ignored.
Assuming this room is rectangular there are two walls with the dimensions 15 5ft x 12 75ft and two walls with the dimensions.
The formula to find the area of the walls of a rectangular room is a 2h l b h is wall height l is room length and b is room breadth.
In an ordinary rectangular room there are 4 walls and opposite walls are equal and the heights are all equal.
2 l b h this is the correct answer of the area of four walls and ceilings the formula is 2 lb bh hl.
Question a rectangular room is 6 m long 4 8 m wide and 3 5 m high.
Observe the opposite walls being of the same size and shape have the same area too.
For the rectangle cdhg the lengths of two adjacent sides are l and h.
Find the inner surface area of the four walls mathematics maths mathsskills funlea.
For the rectangle daeh the lengths of two adjacent sides are b and h.
Hence the total area of the four walls lh bh lh bh.