In the following figure, rectangle represents Mechanics, circle represents Artists, triangle represents Gamers and square represents Golfers. Which set of letters represents Mechanics who are either Artists or Gamers?
From the top of a tower 60 mts high the angle of depression of the top and bottom of a pole are observed to be 45° and 60° respectively. If the pole and tower stand on the same plane, the height of the pole in meters is