# Functions

### Functions
>Write functions that will calculate and return the following:

- `sphere_volume(radius)`

    
Where r is the radius

---
- `sphere_surface(radius)`


where r = radius of sphere

---
- `cylinder_volume(radius,height)`


where r = radius of sphere and h = height

---
- `cylinder_surface(radius,height)`


---
- `cone_volume(radius,height)`


Where r = radius of base of cone , h = height of the cone (perpendicular to base)

---
- `cone_surface(radius,height)`


Where l = slant height of a right circular cone


Due: Monday, 7 October 2019, 6:00 AM