Triangle $ABC$ is such that $AB=10$ cm, $BC=15$ cm and $\angle ABC=40^\circ$. Find the

Question

Triangle $ABC$ is such that $AB=10$ cm, $BC=15$ cm and $\angle ABC=40^\circ$. Find the length $AC$, the area of triangle $ABC$, the perpendicular length from $B$ to $AC$.

Accepted Answer

(i) $9.76\text{ cm}$ (ii) $48.2\text{ cm}^2$ (iii) $9.88\text{ cm}$

The Cosine Code: Unlocking Missing Side Lengths

The Cosine Code: Unlocking Missing Side Lengths

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