The diagram shows the door of a classroom. Which of the following could be the height of the door?

1. Evaluate the given options against the typical height of a classroom door

A typical classroom door is taller than an average person, usually around $2$ metres.

• $0.2\text{ m} = 20\text{ cm}$ (too short, size of a ruler)
• $2\text{ m}$ (reasonable height for a door)
• $2\text{ cm}$ (too short, size of a coin)
• $2000\text{ cm} = 20\text{ m}$ (too tall, height of a building)