<p>The figure shows $\Delta PQR$ formed by the 3 points $P(1,\text{ }2)$, $Q(4,\text{ }6\text{)}$ and $R(-5,\text{ 2)}$.</p>
<div class="content-block"><figure class="question-figure aligncenter" style="text-align: center;"><img src="https://vocwkpgapvksartxhhor.supabase.co/storage/v1/object/public/question-images/pasted/1767352329828-4p1jnrhdhom.png" style="max-width: min(400px, 100%); height: auto; display: block;" class="aligncenter custom-width" /></figure></div>
<p>Find the value of each of the following.</p>
<ol class="i-list"><li><div class="list-item-paragraph">$\sin \angle QPR$,</div></li><li><div class="list-item-paragraph">$\cos \angle QPR$,</div></li><li><div class="list-item-paragraph">$\tan \angle PRQ$.</div></li></ol>

The figure shows $\Delta PQR$ formed by the 3 points $P(1,\text{ }2)$, $Q(4,\text{ }6\text{)}$ and $R(-5,\text{ 2)}$.

Trigonometry Problem Set: Calculating Angles and Fractional Ratios.

Trigonometry Problem Set: Calculating Angles and Fractional Ratios.

Video Solution: