There can be no equivalence.
A decimetre is a measure of length in 1-dimensional space while a square millimetre is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, any attempt at conversion from one to the other is fundamentally flawed.
how much is one decimeter?
15.5 sq inch = 1 sq decimeter
You can't convert that.
1 decimeter is 10 centimeters or 100 millimeters. 1 millimeter is 0.01 decimeters.
1000 decimeter = 1/10 centimeter = 1/100 milimeter = 1/1000
how much is one decimeter?
1 decimeter is 100 millimeters.
One decimeter equals to 100 millimeters.
100 mm in 1 decimeter
15.5 sq inch = 1 sq decimeter
ten
You have it backwards, there are ten millimeters in one decimeter.
10 millimeters are 1 centimeter or 0,1 decimeter.
700 millimeters in 1 decimeter
100
100 millimeters ==
10