Sčítaj uhly:
\( \alpha=64^{\circ}42^{\prime},\beta=23^{\circ}33^{\prime} \)
\( 89^{\circ} 10^{\prime} \)
\( 87^{\circ} 75^{\prime} \)
\( 90^{\circ} 05^{\prime} \)
\( 88^{\circ} 15^{\prime} \)