math-sk.py

#import math   (import this module for mathematics operation)
#math.sqrt(X)...square root of X   |   math.ceil(x)...round a no up   | math.floor(x)...round a no down
#import math

#x = 9.9

#print(math.pi)
#print(math.e)
#result = math.sqrt(x)
#result = math.ceil(x)
#result = math.floor(x)

#print(result)


#calculate circumference of a circle  (c = 2 pie r)   #round(circumference, 2) means the float no after . is round with 2 digit
#import math
#radius = input("Enter the radius of a circle")
#radius = float(input("Enter the radius of a circle"))
#circumference = 2 * math.pi * radius
#print(f"The circumference is: {circumference}")
#print(f"The circumference is: {round(circumference, 2)}cm")

# Area of a circle A = pie r*2

#import math

radius = float(input("Enter the radius of a circle: "))
#area = math.pi * pow(radius, 2)
#print(f"The area of the circle is: {area}")
#print(f"The area of the circle is: {round (area, 2)} cm")

#hypotenuse of a triangle (c = sqrt of a*2 + b*2)
#import math
#a = float(input("Enter side A: "))
#b = float(input("Enter side B: "))
#c = math.sqrt(pow(a,2) + pow(b,2))

#print(f"Side c: {c}")