. How do you convert 54 yards into mm ?

Hint: In order to convert the pints measure into gallons measure , since we have given two quantities of measurement i . e . ‘ yard ‘ and ‘ millimetre ’. To calculate a value in yards to the corresponding value in millimetres , just multiply the given quantity in yards by the number \[914.4\] which is the conversion factor . By performing this calculation we will get to know that 54 yards are equal to how many millimetres .

Complete step by step solution:
The units yards and millimetres both are for measuring the length . The use of conversion is very important from one unit to the other without changing the relative amount of the same given quantity. There is a formula for converting the units from yards to equivalent millimetre can be as $ 1yard = 914.4mm $ that is 1 yard is approximately equal to 914 millimetres.
From the last mentioned, we get the condition $ 1yard = 914.4mm $ . This leads us to the standard to change over inch measure to cm measure. To change over from inch to cm, multiply the inch by 2.54 centimetres.
So, in our question we are given 54 inches.
 $ 1yard = 914.4mm $
Therefore , 54 yards will be equal to how many millimetres , we get this by –
Value in millimetres = value in yards $ \times 914.4 $
 $ Xmm = 54yd \times 914.4 $
Multiplying the above , we get –
  $
   = 54yd \times 914.4 \\
   = 49377.6mm \;
  $
Therefore , our required answer is $ 49377.6\;mm $ .
So, the correct answer is “ $ 49377.6\;mm $ ”.

Note: The yards, indicated by the symbol $ yd $ is the unit for measuring length . The length is mathematically equivalent to the measurement in yards or millimetres ; one yard is $ 1yard = 914.4mm $ or just we can say that 1 yard is equal to these millimetres. The unit millimetre is used in the International System Of Units and is currently viewed as a SI derived unit of the length in the metric system .