Question

The sides of the rectangle are in the the ratio of 5:4 find its area if the perimeter is 180 cm​

Answer 1

Answer:

Let the length be 5a

Width = 4a

Perimeter = 180

=> 2*(L+B) = 180

=> 9a = 90

=> a = 10

Length= 50 cm

Width = 40 cm

Answer 2

Step-by-step explanation:

Let the length be 5a

Width = 4a

Perimeter = 180

=> 2*(L+B) = 180

=> 9a = 90

=> a = 10

Length= 50 cm.

Width = 40 cm.