find the length of segment ac. 60° and 10 cm

AC can be found below
[tex]\begin{gathered} \cos 60^{\circ}=\frac{adjacent\text{ }}{\text{hypotenus}} \\ \cos 60^{\circ}=\frac{AC}{10} \\ AC=10\cos 60^{\circ} \\ AC=10\times0.5 \\ AC=5\text{ cm} \end{gathered}[/tex]