Square units: 1 m² is 10,000 cm²
You learn to convert square units, like m² to cm²: a square metre is 100 cm by 100 cm.
How to work it out
- Check whether there is a ² next to the unit.
- A square metre is 100 cm long and 100 cm wide, so it is 100 × 100 = 10,000 cm².
- To cm², multiply by 10,000.
- To m², divide by 10,000.
3 m² = ? cm²
- 1 m² = 10,000 cm².
- Multiply by 10,000: 3 × 10,000 = 30,000.
- It is 30,000 cm².
Another example
20,000 cm² = ? m²
- You go to the bigger unit, so divide by 10,000: 20,000 ÷ 10,000 = 2.
- It is 2 m².