Cube of side 25 mm
Explanation:
Dimension of cube:
Side, a = 25mm
Volume of cube = (a)³
V = (25mm)³
V = 15625 mm³
Dimension of smaller cube:
Side, a₁ = 24 mm
side a₂ = 7mm
Volume of cube with side 24mm
V = (24)³
V = 13824 mm³
Volume of cube with side 7mm
V = (7mm)³
V = 343 mm³
Total volume of two smaller cubes = 13824 + 343 mm³
= 14167 mm³
Since the volume of bigger cube of side 25mm³ is greater than the two smaller cubes of side 24mm and 7mm, I would rather have a cube of gold that measures 25 mm on each side.
