Correct option is D
Given:
Height of the kite from the ground = 15 m
Angle of inclination of the string with the horizontal = 30°
Formula Used:
In a right-angled triangle,
sin θ = Opposite side / Hypotenuse
=> sin(30°) = height / length of string
Solution:
sin(30°) = 1/2
So,
sin(30°) = height / hypotenuse
=> 1/2 = 15 / length of string
So,
length of string = 15 / (1/2) = 30 m
Correct Final Answer:
30 m