Volume of a cuboid of length (l), width (b) and height (h) is

Question

Volume of a cuboid of length (l), width (b) and height (h) is

1. A. lbh (Correct answer)
2. B. lb + bh + hl
3. C. 2 (l + b) h
4. D. 2 (lb + bh + hl)

Correct Answer

Option A — lbh

Detailed Solution & Explanation

The correct answer is lbh.

Key Points

• The volume of a cuboid is the product of its three dimensions:
  • $V = l \times b \times h$
• Volume measures the space enclosed, so the result is in cubic units (cm³, m³) — and only the product $lbh$ has three length dimensions multiplied together.

Additional Information

• The other options are standard cuboid formulae for different quantities:
  • $lb + bh + hl$ — half the total surface area.
  • $2(l + b)h$ — the lateral (curved) surface area, i.e. the four walls excluding top and bottom.
  • $2(lb + bh + hl)$ — the total surface area, in square units.
• Dimensional check: surface areas are two dimensions multiplied (square units); volume is three (cubic units). This single check identifies the answer without recalling any formula.