Určenie uhlov medzi úsečkami v kocke

\( |\sphericalangle CBG|=50^{\circ},|\sphericalangle BDF|\doteq30^{\circ}16^{\prime},|\sphericalangle ADF|\doteq60^{\circ}44^{\prime} \)
\( |\sphericalangle CBG|=40^{\circ},|\sphericalangle BDF|\doteq36^{\circ}16^{\prime},|\sphericalangle ADF|\doteq55^{\circ}44^{\prime} \)
\( |\sphericalangle CBG|=45^{\circ},|\sphericalangle BDF|\doteq34^{\circ}16^{\prime},|\sphericalangle ADF|\doteq53^{\circ}44^{\prime} \)
\( |\sphericalangle CBG|=45^{\circ},|\sphericalangle BDF|\doteq35^{\circ}16^{\prime},|\sphericalangle ADF|\doteq54^{\circ}44^{\prime} \)