Question

two similar solid shapes a and b are shown, the solids are made from the same matierial the surface area of b is 40.32cm^2 and a is 28cm^2 b has a mass of 6912 calculate the mass of a.

Answer 1

9514 1404 393

Answer:

4000

Explanation:

The ratio of masses will be the 3/2 power of the ratio of areas for the same density and shape of material.

mass ratio = A/6912 = (28/40.32)^(3/2)

A = 6912/1.728 = 4000

The mass of 'a' is 4000.