Kya’s house key is 5.2 cm long. How many millimeters long is her house key
The Correct Answer and Explanation is:
To convert the length of Kya’s house key from centimeters to millimeters, we can use the fact that 1 centimeter (cm) is equal to 10 millimeters (mm).
Conversion:
Length in millimeters=Length in centimeters×10\text{Length in millimeters} = \text{Length in centimeters} \times 10Length in millimeters=Length in centimeters×10
Given that the length of the key is 5.2 cm, we multiply 5.2 by 10 to get the length in millimeters:Length in millimeters=5.2 cm×10=52 mm\text{Length in millimeters} = 5.2 \, \text{cm} \times 10 = 52 \, \text{mm}Length in millimeters=5.2cm×10=52mm
So, Kya’s house key is 52 millimeters long.
Explanation:
The metric system uses a decimal-based structure, which makes unit conversions between different prefixes (like centimeters, millimeters, meters, etc.) straightforward. In this case, the prefix “centi-” refers to one-hundredth of a meter, while “milli-” refers to one-thousandth of a meter. To convert centimeters to millimeters, we simply multiply by 10, as there are 10 millimeters in one centimeter.
This is an easy conversion and can be done for any value in centimeters by simply multiplying it by 10. This is a common practice in fields like science, engineering, and everyday life, as the metric system is widely used for measurement due to its simplicity and ease of understanding.
Understanding how to convert units like this can also help with understanding other metric conversions, such as converting between kilometers and meters, grams and milligrams, etc. The process remains consistent, allowing for quick and efficient calculations.
