`
Tips
Tip 1
$ \eqalign{ & \tan 14,5^\circ = \frac{{PC}} {5} \cr & PC = 5 \cdot tan14,5^\circ \approx 1,29 \cr} $
Tip 2
$ \eqalign{ & \tan 37,5^\circ = \frac{8} {{AB}} \cr & AB = \frac{8} {{\tan 37,5^\circ }} \approx 10,4 \cr} $
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