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 81.19 double square feet?
As;
1 double square feet = 0.0086309748412416 double square meters
81.19 double square feet = Y double square meters
Assuming Y is the answer, and by criss-cross principle;
Y equals 81.19 times 0.0086309748412416 over 1
(i.e.) Y = 81.19 * 0.0086309748412416 / 1 = 0.70074884736041 double square meters
Answer is: 0.70074884736041 double square meters are equivalent to 81.19 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 ) 50.93 ft4
( ii ) 27.37 ft4
( iii ) 56.89 ft4
