A kite is flying at a height of 115 m. The thread attached to it is assumed to be stretched straight and makes an angle of 30° with the level ground. The length of the string is?
Answer & explanation
Correct answer: option 3
AC = length of string
Θ = angle of elevation
AB is the height of kite above ground
sin 30° = 1 : 2
(AB) (BC)
↓ ↓
115 115 × 2 = 230 m