Question

calculate the mass of in kg of arectangular steel plate of dimension 220x338 x 15 mm. Density of steel is 7.82 gm/cm².​

Answer 1

density. = mass /volume

volume of rectangle = l*b*h

=0.22 * 0.338 * 0.015 metre

= 0.0011154 metercube

now do the other steps by yourself

first. convert the given density into kg /m cube

second. now apply the formula of density and therefore calcuate the mass of the steel plate