**Definitions:**

**Double Square Meter** (abbreviations: **m4, or m 4**): is the SI derived unit of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.

**Double Square Millimeter** (abbreviations: **mm4, or mm 4**): is the SI derived unit of area moment of inertia, a geometrical property of an area which reflects how its points are distributed with regard to an arbitrary axis.

## How to Convert Double Square Meters to Double Square Millimeters

*Example: How many double square millimeters are equivalent to 99.9 double square meters?*

As;

1 double square meters = 1000000000000 double square millimeters

99.9 double square meters = Y double square millimeters

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

Y equals 99.9 times 1000000000000 over 1

(i.e.) Y = 99.9 * 1000000000000 / 1 = 99900000000000 double square millimeters

Answer is: 99900000000000 double square millimeters are equivalent to 99.9 double square meters.

*Practice Question: Convert the following units into mm4:*

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

( i ) 47.55 m4

( ii ) 27.2 m4

( iii ) 75.86 m4