Area of a Circle
math.pi aur radius se circle ka area calculate karo.
Working code
import math
radius = 5
area = math.pi * radius ** 2
print(round(area, 2))Expected output
78.54How it works
math.pi π ka standard-library value deta hai. Formula π × r² me ** 2 radius ko square karta hai.
Try Yourself
import math
radius = 8
area = math.pi * radius ** 2
print(round(area, 2))