Question 40

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waecmaths question: 

$\triangle PQR$ is a equilateral triangle with sides $2\sqrt{3}cm$ calculate its height

 

 

 

 

 

 

 

 

 

Option A: 

1.7cm

Option B: 

3.0cm

Option C: 

3.2 cm

Option D: 

3.9cm

waecmaths solution: 

$\begin{align}  & \left| BD \right|\text{ is the }\bot ar\text{ bisector of }\left| AC \right| \\ & \left| BD \right|=\sqrt{{{(2\sqrt{3})}^{2}}-{{(\sqrt{3})}^{2}}}=\sqrt{9}=3cm \\\end{align}$

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