111

$\sphericalangle\left(\overline{u}{,}\ \overline{v}\right)=25°$
$\sphericalangle\left(\overline{u}{,}\ \overline{w}\right)=180°-40°=140°$
$\sphericalangle\left(\overline{v}{,}\ \overline{w}\right)=180°-40°-25=115°$