Question

The length of a rectangular hall is thrice its breadth. If the perimeter of the hall is 96 m then its length is

Answer 1

let breath of hall be x

then lenght of hall will be 3x

if perimeter then it means you don't have to find out area

Step-by-step explanation:

so now,

formula of perimeter is: 2*(l+b)

2*(x +3x)=96

2*4x=96

4x=96/2

4x=48

x=48/2

x=24

therefore,breath is 24 cm

and lenght is 3x =3*24

=72cm

Answer 2

Answer:

breath = x

length = 3x

perimeter= 96

perimeter = 2*(l+b)

96 = 2*(x+3x)

96  = 2* 4x

96/2 =4x

48 = 4x

48/4 =x

12 =x

So, breath= 12

     length= 12*3 = 36

Step-by-step explanation:

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