Which unit would you use to measure length in the metric system?

Which unit would you use to measure length in the metric system?

• A. Liter (L)
• B. Meter (m)
• C. Second (s)
• D. Gram (g)

Answer: (B)

Length in the metric system is measured in meters. The meter is the base unit for length in the International System of Units, so it’s used for measuring how long, tall, or wide something is. The other units listed measure different quantities: liters measure volume, grams measure mass, and seconds measure time. You can also use smaller or larger units derived from the meter, like centimeters or millimeters, but the meter remains the standard unit for length. For example, a desk might be about 1.2 meters long, while a pencil is roughly 18 centimeters (0.18 meters).