A vertical pole is standing at the center of a square . If subtends an at the top of the pole, then the angle subtended by a side of the square at is
Finding the angle subtended by a side of the square at :
Given,
A vertical pole is standing at the center of a square . If subtends an at the top of the pole.
Let
,
Then,
Since,
Therefore is an equilateral triangle
Hence, correct option is .