Answer : The correct option is, (A) 30°
Step-by-step explanation :
As we know that:
........(1)
According to trigonometric function,
.........(2)
By comparing 1 and 2, we can say that:
Now we have to determine the value of perpendicular by using Pythagoras theorem.
Now we have to determine the value of .
According to trigonometric function,
At
Hence, the value of is