Mathematics
Grade-4-
Easy
Question
The perimeter of a square with 7 units is _________.
- 40 units
- 45 units
- 28 units
- 49 units
Hint:
The perimeter of a square is the sum of the all the side length of the square, i.e., 
.
The correct answer is: 28 units
The perimeter of a square is the sum of the all the side length of the square.
Step1: The perimeter of square of side length 
will be equal to.
=>.
Step2: Here we are given the value of side length of square respectively as:
Step3: Now we will calculate the perimeter.
Perimeter=
Perimeter= 
=>
.
So, the perimeter of the given square is .
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