Question

The perimeter of a classroom is 54m and the breadth is 8 m find the length of the classroom​

Answer 1

Answer :-

• The length of the classroom is 19m.

Step-by-step explanation:

To Find :-

• The length of the classroom

Solution:

Given that,

• The perimeter of classroom = 54m
• The breadth of classroom = 8m

Assumption: Let us assume the length of the classroom as "(l) metres",

As we know that,

Perimeter of rectangle = 2 ( length + Breadth ),

➝ 2 ( length + breadth ) = perimeter

➝ 2 ( l + 8 ) = 54

➝ ( l + 8 ) = 54/2

➝ l + 8 = 27

➝ l = 27 - 8

➝ l = 19

Therefore,

• Length ( l )m = 19m.

Hence, The length of classroom is 19m.

Answer 2

perimeter = 54 metre

breadth = 8 metre

perimeter=2l+2b

54cm=2length+ Tu x 8cm

54cm-16cm=2 length

38cm=2 length

38/2 cm= length

19 cm=length

:.length=19cm