Question

tomorrow there is an exam for me ...
so please answer me...
I will mark u as brainliest...
Please...
don't keep wrong answers...
Please ​

Answer 1

The sides of a rectangle are in the ratio 5:4

Let the ratio be x

so, Length = 5x

Breadth = 4x

Perimeter of rectangle = 2(l+b)2(l+b)

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

= 2(9x)2(9x)

Now we are given that its perimeter is 90 cm

So, 2(9x)=902(9x)=90

18x=9018x=90

x=\frac{90}{18}x=

18

90

x=5x=5

So, Length = 5x = 5 \times 5 = 25cm5x=5×5=25cm

Breadth = 4x= 4\times 5 =20cm4x=4×5=20cm

Answer 2

Step-by-step explanation:

one by one Explanation

thanks dear friend