Canada

A skier at Blue Mountain is sitting in a stationary chair of a ski lift enjoying the view of the mountain they are
about to ski down. From the person’s point of view the top and the bottom of the mountain are separated by
an angle of 44 ̊. If the chair of their ski lift is 45m above the ground, and 451 m from the base of the mountain,
calculate the height of the mountain, to the nearest tenth of a metre.