37° bo‘lsa, uchburchakning uchinchi tomonini toping (cm). sin37°=0,6, cos37°=0,8. Tomonlar 6 cm va 8 cm.

Uchinchi tomon kosinuslar teoremasi bo‘yicha: \(c^2=6^2+8^2-2\cdot6\cdot8\cdot\cos37^\circ\).

\(c^2=36+64-96\cdot0.8=23.2\), demak \(c\approx4.8\) cm.

Javob: \(4.8\) cm.