1.

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

Answer»

ong>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


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