Question

if the perimeter of 54cm and the breadth is 9 cm then find the length of the rectangle.

Answer 1

Answer:

18cm

Step-by-step explanation:

Let the length be x

Breadth= 9cm

Perimeter= 54cm

Perimeter= 2(l+b)

=> 54 = 2 ( x + 9 )

=> 54 = 2x + 18

=> 54 - 18 = 2x

=> 36 = 2x

=> x = 36/2

=> x = 18

Therefore, the length is 18cm  

Hope that helps you☺☻☺☻

Answer 2

answer

therefore the length of rectangle is 18 cm

Step-by-step explanation:

given:

perimeter of the rectangle is 54 cm

breadth of the rectangle is 9 cm

to find:

length of the rectangle = ?

solution -

let the length be L

∴ by the question ,

perimeter of rectangle = 2(length + breadth)

54 CM = 2 ( l + 9cm)

54/2cm = l + 9 cm

27cm = l + 9 cm

27cm - 9cm = l

l = 18 cm

therefore the length of rectangle is 18 cm