3D Trigonometry: Geometric Analysis of a Square-Based Cuboid

3D Trigonometry: Geometric Analysis of a Square-Based Cuboid

Secondary 3

The diagram shows a cuboid with a square base such that \(AB=BC=5\) cm.
The height of the cuboid is \(10\) cm.
Calculate

\(\angle EAB\),
\(\angle DAC\).

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Answer:(i) \(\angle EAB=63.4^\circ\) (ii) \(\angle DAC=54.7^\circ\)

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