In the diagram, $\angle ACB=45{}^\circ $, $\angle CBA=60{}^\circ $ and $AC=100$ m. Calculate t

Question

In the diagram, $\angle ACB=45{}^\circ $, $\angle CBA=60{}^\circ $ and $AC=100$ m. Calculate the length of $BC$, the area of $\Delta ABC$.

Accepted Answer

(i) $112\text{ m}$ (ii) $3.94\times10^3\text{ m}^2$

Calculating Triangle Area Using the Sine Rule