Officer Aptitude Rating (OAR) Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which of the following is the volume formula for a cube?

lwh

2 * pi * r

s^2

s^3

The volume formula for a cube is derived from the properties of the cube itself. A cube has equal sides, and if we denote the length of one side as "s," the volume can be calculated by multiplying the area of one face by the length of that side again. Each face of the cube is a square with an area of \(s \times s\) (which is \(s^2\)). Since there are three dimensions to consider, we multiply this area by the length of the cube's side once more, resulting in \(s \times s \times s\), which simplifies to \(s^3\).

This formula specifically applies to cubes, where all edges are of equal length, making option D the correct representation of the volume of a cube. The other options represent different geometrical properties or forms, such as the dimensions of a rectangular prism or the formulas for other shapes like cylinders.

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