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# Write a Program to find the Perimeter of Ellipse

Before writing the program of calculating the perimeter of an ellipse in different programming languages, firstly we have to know about what is ellipse and its perimeter’s formula.

### What is Ellipse?

An ellipse is described as a curve on a plane that surrounds two focal points such that the sum of the distances to the two focal points is constant for every point on the curve.

### Perimeter of Ellipse

Perimeter of Ellipse = 2 * π * sqrt( (a^{2}+ b^{2}) / 2 ) Where, a is the semi-major axis of an ellipse, b is the semi-minor axis of the same ellipse, and the value of π is 3.14.

### Program of calculating the perimeter of an ellipse in different Programming languages

**Program 1:** Write a Program in C language:

**Output of Above C program:**

Enter the semi-major axis of the ellipse:5 Enter the semi-minor axis of the ellipse:10 Perimeter of the ellipse is: 49.647758

**Program 2:** Write a Program in Java language:

**Output of Above Java program:**

The Perimeter of a ellipse is: 49.647759264643554

**Program 3:** Write a Program in PHP programming language.

**Output of Above PHP program:**

49.647759264644

**Program 4:** Write a Program in Python programming language.

**Output of Above Python program:**

49.647759264644