**Definitions:**

**Yard Square** (abbreviations: **yd2, or sy**): is an imperial unit of area, formerly used in most of the English-speaking world but now generally replaced by the square metre, however it is still in widespread use in the U.S., Canada and the U.K. It is the area of a square with sides of one yard (three feet, thirty-six inches, 0.9144 metres) in length.

**Millimeter Square** (abbreviation: **mm2**): is the SI derived unit of area. It is the area of a square whose sides measure exactly one millimeter. The square millimeter is derived from the SI base unit of the metre, which itself is the length of the path travelled by light in absolute vacuum within time interval of 1/299,792,458 * 1/1000 of a second.

## How to Convert Yards Square to Millimeters Square

*Example: How many millimeters square are equivalent to 20.71 yards square?*

As;

1 yards square = 836127 millimeters square

20.71 yards square = Y millimeters square

Assuming Y is the answer, and by criss-cross principle;

Y equals 20.71 times 836127 over 1

(i.e.) Y = 20.71 * 836127 / 1 = 17316190.17 millimeters square

Answer is: 17316190.17 millimeters square are equivalent to 20.71 yards square.

*Practice Question: Convert the following units into mm2:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 40.09 yd2

( ii ) 7.46 yd2

( iii ) 10.06 yd2