Question Number 26008 by Tinkutara last updated on 17/Dec/17
Answered by ajfour last updated on 18/Dec/17
$$\left(\mathrm{3}\right) \\ $$
Answered by ajfour last updated on 18/Dec/17
Commented by ajfour last updated on 18/Dec/17
$${CF}=\:\sqrt{\mathrm{3}}\:{AF}\:=\boldsymbol{{BC}}\mathrm{sin}\:\theta \\ $$$$\Rightarrow\:\:\sqrt{\mathrm{3}}{x}\mathrm{sin}\:\theta\:={l}\mathrm{sin}\:\theta\: \\ $$$$\:\:\:\:\:\:\:\:\:{x}=\frac{{l}}{\:\sqrt{\mathrm{3}}}\:=\:\frac{\mathrm{5}}{\:\sqrt{\mathrm{3}}}\:. \\ $$
Commented by Tinkutara last updated on 18/Dec/17
$$\mathrm{Thank}\:\mathrm{you}\:\mathrm{Sir}! \\ $$