THERE ARE TWO special
triangles in trigonometry. One is the 30°-60°-90° triangle. The other is the isosceles right triangle. They are special because, with simple geometry,
we can know the ratios of their sides. In a 30°-60°-90° triangle the sides are in the ratio 1 : 2 : . Note
that the smallest side, 1, is opposite the smallest angle, 30°; while the
largest side, 2, is opposite the largest angle, 90°. And sqrt(3) is opposite to 60°
Let x be the side opposite to
60
(x/41)= sqrt(3) /1
X = 71.01 ft
