Question

calculate the mass of in kg of a
rectangular steel plate of dimension 220x330 x 15 mm. Density of steel is 7.82 gm/cm².​

Answer 1

Given,

The dimensions of the rectangular steel plate = 220 mm × 330 mm × 15 mm

Density of the steel = 7.82 g/cm³

To find,

The mass of the rectangular steel plate in kilogram unit.

Solution,

First of all,we need to convert the dimensions in the centimetres unit, because the density is also given in gram per centimetre cube unit.

Dimensions = 220 mm × 330 mm × 15 mm = 22 cm × 33 cm × 1.5 cm

[Term of unit conversion 10 mm = 1 cm]

Volume of the plate = 22×33×1.5 = 1089 cm³

Now,

Mass = Volume × Density

Mass = 1089 × 7.82 = 8515.98 grams = 8.515 kilograms

[Term of unit conversion = 1000 grams = 1 kilogram]

Hence,the mass of the plate is 8.515 kilograms.

Answer 2

Answer:

Calculate the mass in kg of a rectangular steel plate of dimensions 445 x 330 x 10 mm (density of steel = 7.82 gm/cm3