Given;
[tex]\begin{gathered} \text{hypotenuse side c=13} \\ \text{Angle B= 25}^o \\ \text{adjacent side a=unknown} \\ \cos \theta=\frac{adjacent}{hypotenuse} \\ \cos 25=\frac{a}{13} \\ a=13\cos 25 \\ a=11.8 \end{gathered}[/tex]The length of side a=11.8 to the nearest tenth.
