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Volume, SM-Bank 031 MC

A timber door wedge is pictured below.
 

The wedge is in the shape of a triangular prism.

What is the volume of the wedge in cubic centimetres?

  1. \(7.5\ \text{cm}^3\)
  2. \(37.5\ \text{cm}^3\)
  3. \(75\ \text{cm}^3\)
  4. \(375\ \text{cm}^3\)
Show Answers Only

\(B\)

Show Worked Solution

\(\text{10 mm =1 cm}\)

\(\text{Volume}\) \(=Ah\)
  \(=\bigg(\dfrac{1}{2}\times 10\times 3\bigg)\times 2.5\)
  \(=15\times 2.5\)
  \(=37.5\ \text{cm}^3\)

 
\(\Rightarrow\ B\)