Twice the sum of length x and breadth y of a rectangle is the perimeter of a rectangle. Write the expression for perimeter.

Solution:

Given, twice the sum of length x and breadth y of a rectangle is the perimeter of a rectangle.

We have to write the expression for perimeter.

Perimeter of rectangle = 2(length + breadth)

Given, length = x

Breadth = y

So, perimeter = 2(x + y)

= 2x + 2y

Therefore, the perimeter is 2x + 2y.

✦ Try This: Twice the sum of length 3x and breadth 5y of a rectangle is the perimeter of a rectangle. Write the expression for perimeter.

Given, twice the sum of length and breadth of a rectangle is the perimeter of a rectangle.

We have to write the expression for perimeter.

Perimeter of rectangle = 2(length + breadth)

Given, length = 3x

Breadth = 5y

So, perimeter = 2(3x + 5y)

= 6x + 10y

Therefore, the perimeter is 6x + 10y.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12

NCERT Exemplar Class 7 Maths Chapter 10 Sample Problem 11

Twice the sum of length x and breadth y of a rectangle is the perimeter of a rectangle. Write the expression for perimeter.

Summary:

Twice the sum of length x and breadth y of a rectangle is the perimeter of a rectangle. The expression for perimeter is 2x + 2y.

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