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The length of a side of square is given as 2x + 3. Which expression represents the perimeter of the square?

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Question

The length of a side of square is given as 2x + 3. Which expression represents the perimeter of the square?

Options

  • 2x + 16

  • 6x + 9

  • 8x + 3

  • 8x + 12

MCQ
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Solution

8x + 12

Explanation:

We know that, perimeter of the square = 4 × side

From the question it is given that, side length of the top of square table is 2x + 3

Then, perimeter = 4 × (2x + 3)

= (4 × 2x) + (4 × 3)

= 8x + 12

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Chapter 10: Algebraic Expressions - Exercise [Page 315]

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NCERT Exemplar Mathematics Exemplar Class 7
Chapter 10 Algebraic Expressions
Exercise | Q 16. | Page 315

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