The height of a person is 1.65m. Express it into cm and mm.

A. 100, 1000

B. 165, 1650

C. 1.65, 1.65

D. 165, 16500

To convert the height of a person from meters to centimeters and millimeters, we need to understand the relationships between these units of measurement. The metric system is quite straightforward, making conversions easy once you know the basic equivalences.

Understanding Metric Conversions

In the metric system:

• 1 meter (m) is equal to 100 centimeters (cm).
• 1 meter (m) is also equal to 1000 millimeters (mm).

Converting Meters to Centimeters

Given that the height is 1.65 meters, we can convert this to centimeters by multiplying by 100:

1.65 m × 100 = 165 cm

Converting Meters to Millimeters

Next, to convert the height into millimeters, we multiply by 1000:

1.65 m × 1000 = 1650 mm

Final Results

So, the height of 1.65 meters can be expressed as:

• 165 centimeters
• 1650 millimeters

Looking at the options provided:

• A. 100, 1000
• B. 165, 1650
• C. 1.65, 1.65
• D. 165, 16500

The correct answer is B. 165, 1650.

Why This Matters

Understanding how to convert between different units of measurement is essential in many fields, including science, engineering, and everyday life. It helps ensure accuracy in communication, whether you're discussing height, distance, or volume. By mastering these conversions, you can confidently navigate various situations that require precise measurements.