The core of hotel quilt 1.7*2.2 is 400g per square meter, so what is the filler?

The width of the quilt core is 1.7m, the length is 2.2m, and the square = length× width =2.2× 1.7=3.74 decimeter. It is known that 400g should be filled in every square meter and 3.74× 400 = 1496g should be filled in 3.74 square meters, from which a conclusion can be drawn. Mainly use the square formula in mathematical knowledge.

The formula for calculating the square area is: rectangle: S=axb, {rectangular area = length × width}. Square: S=axa{ square area = side length x side length}, parallelogram: S=ah{ parallelogram area = bottom x height}. Triangle: S=axb+2 (triangle area = base x height +2). Cuboid surface area: S=2x(ab+ac+bc), {cuboid surface area = (length× width+length× height+width× height )× 2}.