Question

find the lenght of a room which is 40 m wide and has a perimeter of 16428​

Answer 1

Step-by-step explanation:

2 (l+b)h or which can be written as 40×4=1600msq. so the ans is 1600msq. hope it helps you.

Answer 2

Here the width and the perimeter of a room are given

perimeter = 16428

width = 40 m

We have to find the length of the room

Let the length of the room be x

Perimeter = 2 ( length + width )

   16428 = 2 ( x + 40 )

      8214 = x + 40

            x = 8214 - 40

               =  8174

Hence, the length of the room will be 8174 m