Answer:
61 m
Explanations:
Let the length of the string to which Brian's kite is attached be L
L = 65 m
The angle of elevation, θ = 70°
The diagramatic illustration of the description is shown below:
To calculate the height, h, use the method below:
Sin θ = Opposite / Hypotenuse
The Length, L, is the hypotenuse
The height, H, is the opposite
Therefore,
Sin 70 = H / 65
H = 65 x sin 70
H = 65 x 0.94
H = 61.1 m = 61 m
The kite is 61 m above above Brian's head
