What is Square?
A square is a quadrilateral in which it has 4 equal sides and all the interior angles of a square are right angles. It is a closed two-dimensional plane figure. In this article, we will discuss the area of a square and perimeter of square in detail.
Area of Square
The area of a square is defined as the space occupied by the two-dimensional figure called square and the area of the square formula is given as
Area = width × height
But since the width and height are the same, the formula is usually written as
Area of a Square = Side × side = side² square units
where s is the length of one side.
Perimeter of square Formula
The perimeter of square is defined as the length of the boundary of a square
The Perimeter of square formula is given by,
Perimeter = length of 4 sides
= 4 × side
Therefore, the perimeter of Square = 4s units
Does Square have Surface Area?
People sometimes confuse the area of a square with the surface area. The surface area is however for three – dimensional figures such as a cube where there is more than one surface are involved and not for the planar shapes such as a square having only a single surface.
Thus, in order to calculate the surface area of the square one must follow the same method as to compute the area of the square.
Question: Find the perimeter of square whose side is 5 cm?
Side, s = 5 cm
The formula to find the perimeter of square is given by
The perimeter of Square = 4s units
Substitute the value of ‘s’ in the perimeter formula,
P= 4 × 5 cm
p = 20 cm
Therefore, the perimeter of square = 20 cm
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