How many centimeters are in 3 inches?

Hint:In the given question, we have been given to convert one unit of measurement to another. We have to convert some given number of inches to centimeters. Here, we convert inches to centimeters by first writing the relationship between an inch and centimeters and then multiplying by the given number of inches with it. It is thus important that we know how many centimeters are there in an inch.

Formula Used:
We are going to use the relation between inches and centimeters, which is,
\[1in = 2.54cm\].

Complete step by step answer:
We have to convert \[3\] into cm.
To do that, we multiply the conversion of one inch to centimeter by \[3\],
\[1in = 2.54cm\]
So, \[3in = 2.54 \times 3 = 7.62cm\]

Additional Information:
Here, we converted inches to centimeters by first writing the relationship between an inch and centimeters and then multiplying by the given number of inches. For the conversion of centimeters to millimeters, we multiply the given number of centimeters by ten. While to convert meters to centimeters, we multiply by a hundred.

Note: In the given question, we had to convert inches to centimeters. Here, we converted inches to centimeters by first writing the relationship between an inch and centimeters and then multiplying by the given number of inches. It is thus important that we know how many centimeters are there in an inch.