मराठी

The side length of the top of square table is x. The expression for perimeter is ______. - Mathematics

Advertisements
Advertisements

प्रश्न

The side length of the top of square table is x. The expression for perimeter is ______.

पर्याय

  • 4 + x

  • 2x

  • 4x

  • 8x

MCQ
रिकाम्या जागा भरा
Advertisements

उत्तर

The side length of the top of square table is x. The expression for perimeter is 4x.

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 x

Then, perimeter = 4 × x = 4x.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Algebraic Expressions - Exercise [पृष्ठ ३१४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 10 Algebraic Expressions
Exercise | Q 11. | पृष्ठ ३१४

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 − 

 


Use the given algebraic expression to complete the table of number patterns.

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 -

Write down the following in the product form: x2y4


Write down the following in the product form: 6y5


Write down the following in the product form: 10a3b3c3


Find a number which when multiplied by 5 is increased by 80.


Find two numbers such that one of them is five times the other and their difference is 132.


The sum of two consecutive even numbers is 74. Find the numbers.


Deepak is twice as old as his brother Vikas. If the difference between their ages is 11 years, find their present ages.


The area of a square having each side x is ______.


The two digit number whose ten’s digit is ‘t’ and units’s digit is ‘u’ is ______.


If x is a negative integer, – x is a positive integer.


A cube is a three-dimensional figure as shown in the given figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by l. Find the formula for the total length of the edges of a cube. 


To find sum of three numbers 14, 27 and 13, we can have two ways:

  1. We may first add 14 and 27 to get 41 and then add 13 to it to get the total sum 54 or
  2. We may add 27 and 13 to get 40 and then add 14 to get the sum 54. Thus, (14 + 27) + 13 = 14 + (27 + 13)

This can be done for any three numbers. This property is known as the associativity of addition of numbers. Express this property which we have already studied in the chapter on whole numbers, in a  general way, by using variables a, b and c.


The sum of squares of first n natural numbers is given by `1/6n(n + 1)(2n + 1)` or `1/6(2n^3 + 3n^2 + n)`. Find the sum of squares of the first 10 natural numbers.


If = 2x + 3,  = `3/2x + 7` and  = x – 3 then find the value of:

`1/2` + – 3


If = `3/4x - 2` and = x + 6, then find the value of:


Write an expression for the sum of 1 and twice a number n. If you let n be any odd number, will the result always be an odd number?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×