**Definitions:**

**Double Square Foot** (abbreviation: **ft4**): is an imperial unit and U.S. customary unit (non-SI, non-metric) 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 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.

## How to Convert Double Square Feet to Double Square Meters

*Example: How many double square meters are equivalent to 16.58 double square feet?*

As;

1 double square feet = 0.0086309748412416 double square meters

16.58 double square feet = Y double square meters

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

Y equals 16.58 times 0.0086309748412416 over 1

(i.e.) Y = 16.58 * 0.0086309748412416 / 1 = 0.14310156286779 double square meters

Answer is: 0.14310156286779 double square meters are equivalent to 16.58 double square feet.

*Practice Question: Convert the following units into m4:*

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

( i ) 89.18 ft4

( ii ) 83.08 ft4

( iii ) 55.68 ft4