Question

The parameter of a room is 18m it is 4 m wide find its length and area

Answer 1

Answer:

2(l+b)=18

2(l+4)=18

2l+8=18

2l=18-8

2l=10

l=10/2

l=5 cm

area=lxb

      =5x4

      =20 cm^2

Step-by-step explanation:

Answer 2

Let length be = L
Breadth = 4 m
Parameter = 2(l+b) = 18

A . T . S

2(l+b) = 18

Put value

2(l + 4) = 18

L+4 = 18/2

L+4 = 9

L = 9-4

L = 5m


So, by this solvation we get length = 5m