Jambmaths question:
In the diagram above, PQ = 10cm, PS = 8cm and $\angle PSR$ is 60o. While SRQ is a right angle. Find SR
Option A:
$14\sqrt{3}cm$
Option B:
14cm
Option C:
$10\sqrt{3}cm$
Option D:
10cm
Jamb Maths Solution:
$\begin{align} & \left| SO \right|=8\cos 60=8\times \tfrac{1}{2}=4 \\ & \left| SR \right|=\left| SO \right|+\left| OR \right|=(4+10)cm=14cm \\\end{align}$
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