Question

A glass paper weight is in the shape of a solid pyramid with a square base of length 6 cm and a height of 7 cm. Given that the density of the glass is 3.1 g/cm³, find the mass of four identical paper weights.​

Answer 1

Answer:

Step-by-step explanation: Density(ρ) is defined as Mass/Volume

ρ=M/V

We know that the Volume of a pyramid with a square base is

V=1/3(s^2)(h)=1/3(36)(7)=84 cm^3

Since there are 4 pyramids,

84*4=336 cm^3

3.1 g/cm^3=M/336 cm^3

1041.6 g=M