
Patrick B. answered 02/09/19
Math and computer tutor/teacher
The density shall be 740 kg/m^3
as given at the source http://rechdrev.by/en/products/plate-materials/laminirovannaia-dsp
Density = Mass / Volume
the volume is 18 mm * 35 cm * 35 cm =
1.8 cm * 35 cm * 35 cm =
2205 cm ^3
1 cubic meter = 100*100*100 cm^3 = 1000000 cm^3
So the volume is 2205 / 1000000 =0.002205 m^3
740 kg/,^3 = mass/0.002205 m^3
740 kg/m^3 * 0.002205 m^3 = mass
1.6317 kg = mass