Cone Volume & Surface Area Calculator — सूत्र

## Cone Formulas

### Volume

**V = (1/3) × pi × r² × h**

### Slant Height

**l = sqrt(r² + h²)**

### Surface Area

- **Lateral area** = pi × r × l
- **Total area** = pi × r × l + pi × r² = pi × r × (l + r)

हल किया गया उदाहरण

Cone with radius 4 and height 9.

  1. Slant = √(16+81) = √97 ≈ 9.8489
  2. Volume = (1/3)×pi×16×9 = 48pi ≈ 150.7964
  3. Lateral SA = pi×4×9.8489 ≈ 123.7168
  4. Total SA = 123.7168 + pi×16 ≈ 173.9460