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7 grade maths

What is 210 mm in cm?

Profile image of Aniket Singh
11 Months agoGrade
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1 Answer

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ApprovedApproved Tutor Answer11 Months ago

To convert millimeters to centimeters, you need to know the relationship between these two units of measurement. Specifically, 1 centimeter is equal to 10 millimeters. So, to convert 210 millimeters to centimeters, you can use a simple division.

Conversion Process

Here’s how you can do the conversion step-by-step:

  • Start with the measurement in millimeters: 210 mm.
  • Since 1 cm = 10 mm, you divide the number of millimeters by 10.
  • Perform the calculation: 210 mm ÷ 10 = 21 cm.

Final Result

Therefore, 210 millimeters is equal to 21 centimeters.

Understanding the Units

To further clarify, let’s break down what these units represent:

  • Millimeter (mm): A millimeter is a metric unit of length that is one-thousandth of a meter. It’s commonly used for small measurements, such as the thickness of a credit card or the diameter of a pencil lead.
  • Centimeter (cm): A centimeter is also a metric unit of length, equal to one-hundredth of a meter. It’s often used for measuring slightly larger objects, like the height of a person or the width of a book.

Practical Applications

Understanding how to convert between these units can be very useful in various fields:

  • Engineering: Engineers often need to convert measurements for designs and specifications.
  • Everyday Life: When shopping for items that are measured in different units, knowing how to convert can help you make better decisions.

In summary, converting 210 mm to cm is straightforward: simply divide by 10 to get 21 cm. This knowledge not only helps in academic settings but also in practical, everyday situations.