Answer:
C
Step-by-step explanation:
Given 2 similar figures with linear ratio = a : b, then
ratio of areas = a² : b² and
ratio of volumes = a³ : b³
Here linear ratio = 42 : 56 ← divide both parts by 14
linear ratio = 3 : 4 ← in simplest form, thus
ratio of areas = 3² : 4² = 9 : 16
ratio of volumes = 3³ : 4³ = 27 : 64