Question

the side of a rectangular are in the ratio 4:5 and its perimeter is 90 cm. find the dimension of the rectangle and its area​

Answer 1

Answer:

Step-by-step explanation:

Here's your answer =>=>

Perimeter = 90cm

Length of sides = 4:5

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 × 5 = 20cm

5x = 5 × 5 = 25cm

To find the area of this rectangle___Follow the given steps____

Area of rectangle = Length × Breadth

Length = 20cm

Breadth = 25cm

Area = L × B

Area = 20cm × 25cm

Area = 500 cm^2

Hope it will help you ☆▪☆

Thanks ^_^