Area of Square
To find the area of a square whose length of a side is given, use the following formula.
Area of Rectangle = side * side
Program
In the following program, we shall define a function areaOfSquare() that takes length of a side as argument and return the area of square.
We read length of a side as integer from user, call areaOfSquare() with the length of side passed as argument. You can also read length of the side as floating-point number from user using float() function. In the following program we use int() and you may try float() as practice.
Input
length of a side, where side > 0
Python Program
def areaOfSquare(side) :
if side < 0 :
print('Side cannot be negative.')
return
return side * side
side = int(input('Enter side length : '))
area = areaOfSquare(side)
print(f'Area of Square : {area}')
CopyOutput
Enter side length : 7
Area of Square : 49
Important Points regarding above program
- input() function reads a string from standard input. Therefore, we have used int() function to convert string to integer.
- If given length of side is less than zero, we are returning nothing.