To convert the unit of length from feet and inches to centimeters, follow these steps:

Step 1: Identify the given value

In this case, the given value is 5 feet and 5 inches, denoted as 5’5.

Step 2: Convert feet to inches

Since 1 foot is equal to 12 inches, we can convert 5 feet to inches by multiplying it by 12.

5 feet = 5 x 12 inches = 60 inches

Step 3: Add the remaining inches to the total inches

In our given value, we still have 5 inches. So, we need to add it to the total inches we got from step 2.

60 inches + 5 inches = 65 inches

Step 4: Convert inches to centimeters

1 inch is equal to 2.54 centimeters. To convert inches to centimeters, we multiply the total inches by 2.54.

65 inches = 65 x 2.54 = 165.1 centimeters

Step 5: Round off the answer

Finally, we round off the answer to the nearest whole number since centimeters are a unit of measurement that goes to the nearest whole number.

165.1 cm rounded off to the nearest whole number is 165 cm.

Therefore, 5 feet 5 inches is equal to 165 cm.

In summary, to convert the unit of length from feet and inches to centimeters, you need to first convert feet to inches, add the remaining inches to the total inches, and then multiply the total inches by 2.54 to get the final answer in centimeters. It is also important to remember to round off the answer to the nearest whole number for accurate measurement.