Question

the side of rectangle are in ratio 4 :5 and perimeter is 20 CM draw the rectangle please help​

Answer 1

Answer:

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

$\: \:$

Answer:

Given

• Perimeter = 90cm
• Length of sides = 4:5

Solution

Let the common ratio be x

So the sides will be 4x and 5x

We know the sum of all sides of a rectangle = Perimeter

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

⇛ 4x + 4x + 5x + 5x = 90

⇛ 18x = 90

⇛ x = 90/18

⇛ x = 5

Hence, the length of the sides is

↦ 4x = 4 x 5 = 20cm

↦ 5x = 5 x 5 = 25cm

[Area of rectangle = Length x Breadth]

=> Length = 20cm

=> Breadth = 25cm

=> Area = L x B

=> Area = 20cm x 25cm

=> Area = 500 cm^2

Step-by-step explanation:

Hope it will help you ✩✩

Have a nice day!^^