Question 13

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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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