In the diagram, |QR| = 5cm, PQR = 60<sup>o</sup&...
In the diagram, |QR| = 5cm, PQR = 60<sup>o</sup> and PSR = 45<sup>o</sup>. Find |PS|, leaving your answe in surd form.
4√5cm
3√7cm
4√6cm
5√6cm
Correct answer is D
tan 6o = |PR||QR|
√3=|PR|5
= |PR| = 5√3cm
sin 45 = |PR||PS|
1√2 = 5√3|PS|
|PS| = 5√3 x √2
= 5√6cm
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