मराठी

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

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प्रश्न

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

पर्याय

  • 2x + 16

  • 6x + 9

  • 8x + 3

  • 8x + 12

MCQ
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उत्तर

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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पाठ 10: Algebraic Expressions - Exercise [पृष्ठ ३१५]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 10 Algebraic Expressions
Exercise | Q 16. | पृष्ठ ३१५

संबंधित प्रश्‍न

Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches or calculators.

If the number of digits formed is taken to be n, the number of segments required to
form n digits is given by the algebraic expression appearing on the right of each pattern.

How many segments are required to form 5, 10, 100 digits of the kind −


Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches or calculators.

If the number of digits formed is taken to be n, the number of segments required to form n digits is given by the algebraic expression appearing on the right of each pattern.

How many segments are required to form 5, 10, 100 digits of the kind − 

 


Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches or calculators.

If the number of digits formed is taken to be n, the number of segments required to form n digits is given by the algebraic expression appearing on the right of each pattern.

How many segments are required to form 5, 10, 100 digits of the kind −


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S. No


Expression

Terms
1st 2nd 3rd 4th 5th ... 10th ... 100th ...
1 2n - 1 1 3 5 7 9 - 19 - - -
2 3n + 2 5 8 11 14 - - - - - -
3 4n + 1 5 9 13 17 - - - - - -
4 7n + 20 27 34 41 48 - - - - - -
5 n2 + 1 2 5 10 17 - - - - 10001 -

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