Ans: A
Let $\theta$ be the angle of depression of $Q$ from $P$. Since $AP//QC$, then $\theta = 40^\circ$.
Resources for HKDSE Mathematics
Resources for HKDSE Mathematics
Let $\theta$ be the angle of depression of $Q$ from $P$. Since $AP//QC$, then $\theta = 40^\circ$.
