In 
, right-angled at Q, PQ = 3 cm and PR = 6 cm. Determine 
.
In 
, right-angled at Q, PQ = 3 cm and PR = 6 cm.
Now, in 
,
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In , right-angled at Q, PQ = 3 cm and PR = 6 cm. Determine .
In , right-angled at Q, PQ = 3 cm and PR = 6 cm.
Now, in ,