A metal rod is 21 inches long. What is its length in centimetres, correct to the nearest centimetres, if 1 inch =2.54cm
To find the length of the metal rod in centimeters, we divide its length in inches by the conversion factor between inches and centimeters, which is 2.54 cm/inch.
So, the length in centimeters is 21 inches × 2.54 cm/inch = 53.34 cm.
Rounding this result to the nearest centimeter gives a length of 53 centimeters.
To convert inches to centimeters, you can use the conversion factor that 1 inch is equal to 2.54 centimeters.
First, we need to find the length of the metal rod in centimeters.
Multiply the length of the metal rod in inches (21 inches) by the conversion factor (2.54 cm/inch):
21 inches * 2.54 cm/inch = 53.34 cm
Since we need to round the length to the nearest centimeter, the length of the metal rod is approximately 53 centimeters.
To convert the length of the metal rod from inches to centimeters, we can use the conversion factor of 1 inch = 2.54 centimeters.
The given length of the metal rod is 21 inches. To convert this to centimeters, we can multiply the length in inches by the conversion factor:
21 inches * 2.54 centimeters/inch = 53.34 centimeters
Therefore, the length of the metal rod in centimeters is approximately 53 centimeters, when rounded to the nearest centimeter.