To calculate the mass of the rectangular sheet of metal, we first need to calculate its area.
The area of a rectangle is given by the formula: A = length * width.
Given that the length of the rectangular sheet is 15.7 cm and the width is 12.9 cm, we can calculate the area:
A = 15.7 cm * 12.9 cm = 202.53 cm²
We are given that the mass of the metal is 38.1 g per cm².
So, the total mass of the rectangular sheet of metal is:
mass = area * mass per cm² = 202.53 cm² * 38.1 g/cm² = 7717.773 g
To convert the mass from grams to kilograms, we need to divide it by 1000:
mass = 7717.773 g / 1000 = 7.717773 kg
Therefore, the mass of the rectangular sheet of metal is approximately 7.717773 kg.
Calculate the mass in kg,of a rectangular sheet of metal 15.7cm long and 12.9cm wide,if it's mass is 38.1g.per cm2
1 answer