Question

The area of a rectangle is 50cm square and it's perimeter is 30cm.find it's length

Answer 1

Answer:

Perimeter of the rectangle = 2(Length + Breadth)

Area of the rectangle = Length × Breadth

Step-by-step explanation:

Let the length of the rectangle be 'L'

Let the breadth of the rectangle be 'B'

Area of the rectangle = L × B

2(L + B) = 50

L + B = 25

According to the question

(L × B) : L = 5 : 1

(L × B)/L = 5/1

L × (25 - L) = 5L (B = 25 - L)

25L - L2 = 5L

⇒ L = 20