Volume of cube side 4.

**The reasoning** A cube has all sides equal. The volume formula is: **Volume = side × side × side = side³** Given: side = 4 Volume = 4 × 4 × 4 = **64 cubic units** Think of it like stacking smaller cubes: if you have a 4×4 layer, that's 16 small cubes. Stack 4 such layers high, and you get 16 × 4 = 64 cubes total. **Why the wrong options tempt you** - **A) 16** — This is side × side (4 × 4), which gives you the *area* of one face, not the volume. You forgot the third dimension! - **B) 32** — Maybe you did 4 × 4 × 2 or 4 × 8. There's no logical formula here; it's a calculation slip. - **C) 48** — Possibly confused with surface area thinking (though 6 × 4² = 96 actually). Another miscalculation trap. **Quick takeaway** For any cube: **Volume = side³**. Always multiply the side *three times* because volume fills 3D space—length, width, and height!