45cm to inches

Converting units from centimeters to inches is a common task in mathematics. In order to convert 45 centimeters (cm) to inches, you will need to follow these simple steps:

Step 1: Understand the relationship between centimeters and inches

Centimeters and inches are both units of length, with centimeters being a metric unit and inches being a customary unit. 1 centimeter is equal to 0.3937 inches. This means that to convert from centimeters to inches, we need to multiply the value in centimeters by 0.3937.

Step 2: Write down the conversion formula

To convert 45cm to inches, we can use the formula:
45 cm x 0.3937 = 17.7165 inches

Step 3: Perform the calculation

Using a calculator, multiply 45 by 0.3937. The answer should come out to be 17.7165 inches. This means that 45cm is equal to 17.7165 inches.

Step 4: Round the answer

Since inches are typically expressed to the nearest tenth, we can round the answer to 17.7 inches. This is the final answer to our conversion.

Step 5: Verify the answer

To ensure that the answer is correct, we can reverse the conversion and convert 17.7 inches back to centimeters. Using the same conversion formula, we get:
17.7 inches x (1 cm/0.3937 inches) = 44.984 cm
Since the answer is close to the original value of 45cm, we can be confident that our conversion is correct.

In conclusion, to convert 45cm to inches, we multiply the value in centimeters by 0.3937. The final answer is 17.7 inches. It is important to remember the relationship between the two units and to double check the answer for accuracy. With these steps, anyone can easily convert units of length between centimeters and inches.

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