What is a fire triangle ?

The fire triangle (or combustion triangle) is a fundamental model used to understand the three necessary ingredients required for most fires to ignite and sustain themselves. These three components are:

• Fuel: Any combustible material (solid, liquid, or gas).
• Heat: The energy needed to raise the fuel to its ignition temperature.
• Oxygen: The oxidizing agent that reacts with the fuel (usually from the surrounding air).

If any one of these three elements is removed, the fire will be extinguished. For example, a fire blanket removes oxygen, while water primarily removes heat. Options B and C are incorrect because Carbon Dioxide (CO₂) is an extinguishing agent that displaces oxygen, rather than a component that sustains fire.