WJEC Level 1 And 2 Engineering – Design, Manufacture, And Problem Solving Practice Exam

How do you calculate the volume of a rectangular block?

Volume = Length × Width. Volume = Length × Width × Height. Volume = Height ÷ Density. Volume = (Length × Width × Height) ÷ 2.

Correct Answer:

Volume = Length × Width × Height.

Explanation:

Volume is the amount of space inside a 3D shape. For a rectangular block, you can think of filling it with unit cubes: along the length you have L units, along the width W units, and along the height H units. The total number of unit cubes is L × W × H, so the volume is length × width × height. This multiplies all three dimensions to give the space inside. The other options mix up what you’re counting (area instead of volume) or introduce division or density, which don’t apply to this calculation.

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