The diagram shows two triangles, $\Delta ABC$ and $\Delta ACD$. $\angle CAD = 90{}^\circ$, \(\

Question

The diagram shows two triangles, $\Delta ABC$ and $\Delta ACD$. $\angle CAD = 90{}^\circ$, $\angle ABC = 25{}^\circ$, $AD = 4$ cm and $AB = 8$ cm. Find $\angle ADC$, the length of $CD$, the length of $BC$.

Accepted Answer

(i) $57.7^\circ$ (ii) $7.49\text{ cm}$ (iii) $1.90\text{ cm}$

Application of Sine and Cosine Ratios in Multi-Triangle Systems

Application of Sine and Cosine Ratios in Multi-Triangle Systems

Video Solution:

Solution:

Solution locked