Question

Find the lenth of a rectangleWhose Perimeter
is 90 m and side are in the statio of 5:4.​

Answer 1

Step-by-step explanation:

Sides of the rectangle are in the ratio of 4:5

Let the length l=5x

and the breadth b=4x

Now, perimeter =2(l+b)=90cm

2(5x+4x)=90

2(9x)=90

18x=90

x=5

Therefore, Length l=5x=25cm

and the breadth b=4x=20cm

Answer 2

Step-by-step explanation:

Given, perimeter=90m

sides of the rectangle are in the ratio 5:4

Let the length be 5x and

breadth be 4x

Perimeter of a rectangle = 2(l+b)

= 90m=2(5x+4x)

= 90m=2×9x

= 90m=18x

=90/18=x

=x= 5

Therefore, length,l = 5x=5×5=25

breadth,b=4x=4×5=20

hope it will help you