Question

the perimeter of a rectangle is 20cm.its breadth is 2m less then it's length.find it's length and breadth.​

Answer 1

Answer:

Length and breadth of the rectangle is 6 cm and 4 cm respectively.

Step-by-step explanation:

Given that:

The perimeter of a rectangle is 20 cm.

Its breadth is 2 cm less then its length.

To Find:

Length and breadth of the rectangle.

Let us assume:

Length of the rectangle be x cm

Breadth of the rectangle = (x - 2) cm

Formula used:

Perimeter of rectangle = 2(Length + Breadth)

Finding the length and Breadth:

According to the question.

⟶ 20 = 2(x + x - 2)

⟶ 20 = 2x + 2x - 4

⟶ 20 = 4x - 4

⟶ 4x = 20 + 4

⟶ 4x = 24

⟶ x = 24/4

⟶ x = 6

We get that:

Length = x = 6 cm

Breadth = x - 2 = 6 - 2 = 4 cm

Answer 2

Step-by-step explanation:

The formula for the area A of a rectangle is: A = lw, where l is the length of the rectangle and w is the breadth or width of the rectangle. = 16 cm² is the final answer