Python Math: Calculate the area of sector

Last update on April 02 2025 12:29:29 (UTC/GMT +8 hours)

8. Sector Area Calculator

Write a Python program to calculate the area of a sector.
Note: A circular sector or circle sector, is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector.

Sample Solution:

Python Code:

def sectorarea():
    pi=22/7
    radius = float(input('Radius of Circle: '))
    angle = float(input('angle measure: '))
    if angle >= 360:
        print("Angle is not possible")
        return
    sur_area = (pi*radius**2) * (angle/360)
    print("Sector Area: ", sur_area)

sectorarea()

Sample Output:

Radius of Circle: 4                                                                                           
angle measure: 45                                                                                             
Sector Area:  6.285714285714286  

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to calculate the area of a circular sector given the radius and angle in degrees, and print the result.
• Write a Python function that computes the sector area by converting the angle to radians first, then applies the sector area formula.
• Write a Python script to compare the sector area of two circles with different radii but the same angle, printing both areas.
• Write a Python program to prompt the user for a circle’s radius and a sector angle, compute the area, and display the result rounded to 4 decimal places.

Python Code Editor:

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