In triangle $ABC$, $AC=3$ cm, $AB=4$ cm and $BC=5$ cm. Given that angle $BAC=90{}^\circ $,

Question

In triangle $ABC$, $AC=3$ cm, $AB=4$ cm and $BC=5$ cm. Given that angle $BAC=90{}^\circ $, state the value of $\sin \angle ACB$, $\cos \angle ACB$, $\tan \angle ACB$, $\sin \angle CBA$, $\cos \angle CBA$, $\tan \angle CBA$.

Accepted Answer

(i) $\frac{4}{5}$ (ii) $\frac{3}{5}$ (iii) $\frac{4}{3}$ (iv) $\frac{3}{5}$ (v) $\frac{4}{5}$ (vi) $\frac{3}{4}$

Stating the trigonometric ratios

Stating the trigonometric ratios

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