Python Program to calculate area of a square
In this tutorial, we will learn how to do a simple program of calculating the area of a square in python. The area is defined as the total space a shape occupies. It is measured in square units like cm², m², km² depending on the unit of the dimensions. The formula for calculating the area of a square is given as
The formula for Area of Square
Area of a square= Side x Side
Area= Side²
For example, following as input and give the output accordingly.
Input- 2.5
Output- 6.25
Input- 5
Output- 25
Here are two simple methods for calculating and printing the area of a square where the measurement of a side is given by the user.
- Using multiplication operator (*)
- Using pow() function
Approach 1: Using multiplication operator (*)
Given below is a simple program for calculating area using the multiplication operator (*). The input is taken as float and the area is calculated up to 4 decimal places. We will use the "%.4f" specifier for getting 4 digits after the decimal point. In "%.4f" the number after the dot is used to indicate the decimal places and f specifies float.
Algorithm
Step 1- Take input of side from user
Step 2 - Calculate area
Step 3- Print area using "%.4f"
Python Program
Look at the program to understand the implementation of the above-mentioned approach.
#area of square
s=float(input("Enter side of square"))
area=s*s
print("Area of square=",'%.4f'%area)
Enter side of square3.2
Area of square= 10.2400
Approach 2: Using pow() function
pow() is a predefined math function in python which returns the value of x to the power y. To know more about pow() and other built-in math functions. I advise you to read the article on Python math function.
Algorithm
Step 1- Define a function area_square() to calculate area Take input of side from user
Step 2 - Call pow() and set parameters as n,2 to calculate the area
Step 3- Take input from the user
Step 4- Call area_square() and pass input as a parameter
Step 5- Print the area
Python Program
Look at the program to understand the implementation of the above-mentioned approach.
def area_square(n):
area = pow(n,2)
return area
num=float(input("Enter number") )
print("Sum of digits",area_square(num))
Enter side of square2.4
Area of square= 5.7600
Conclusion
In this tutorial, we learned how to calculate the area of a square using 2 approaches. One, by using simple statements for multiplication and printing the output. Two, using a predefined math function called pow(). You can also define a function to calculate area by simply using the code from the first approach.
