Answer:
True
False
72
72
96
30
See below.
Explanation:
First statement: True
A unit cube is a cube with an edge length of 1 unit.
Its volume is (1 unit)³ = 1 unit³
Second Statement: False
A unit cube cannot be used to measure the volume of "other 2D shapes" since a 2D shape has no volume. Only a 3D shape can have a volume. The word "other" is also used incorrectly.
Problems:
9 × 2 × 4 = 72; 72 cubic units
6 × 3 × 4 = 72; 72 cubic units
Length = 4; Width = 4; Height = 6
4 × 4 × 6 = 96; 96 cubic units
Length = 3; Width = 5; Height = 2
3 × 5 × 2 = 30; 30 cubic units