) A kite is fileying at a height of 75 cm above the
ground maker an angel of 30 with the ground
Find the length of the String
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Step-by-step explanation:
Given :-
A kite is fileying at a height of 75 cm above the
ground maker an angel of 30 with the ground.
To find:-
Find the length of the String ?
Solution:-
Let the length of the string be l cm
The distance between the ground and the kite
= AB = 75 cm
Angle of elevation = 30°
∠BCA = 30°
From the ∆ABC , ∠B = 90°
Sin Θ = Opposite side to Θ/ Hypotenuse
=> Sin 30° = AB/AC
=> 1/2 = 75 / l
On applying cross multiplication then
=> 1×l = 2×75
=> l = 150 cm
Length of the string = 150cm
Answer:-
Length of the string = 150cm
Used formulae:-
- Sin Θ = Opposite side to Θ/ Hypotenuse
- Sin 30° = 1/2
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