# Write a program to find the Volume of Tetrahedron

Before writing the program of calculating the volume of a tetrahedron in different programming languages, firstly we have to know about what is tetrahedron and its formula.

### What is Tetrahedron?

Tetrahedron is simply a polyhedron shape, which has 4 triangular faces, four vertices, and six edges. If the faces are all congruent equilateral triangles, then the tetrahedron is called regular.

### Program of calculating the volume of a tetrahedron in different Programming languages

Program 1: Write a Program in C language:

Output of Above C program:

```Enter the side of the tetrahedron:5
Surface area of the tetrahedron is: 14.731391
```

Program 2: Write a Program in Java language:

Output of Above Java program:

```The volume of a tetrahedron is:14.731391274719739
```

Program 3: Write a Program in PHP programming language.

Output of Above PHP program:

```14.73
```

Program 4: Write a Program in Python programming language.

Output of Above Python program:

```117.85113019775791
```

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