The given triangle is a right triangle. Considering angle 42.5 as the reference angle,
hypotenuse = 500
opposite side = h
We would find h by applying the sine trigonometric ratio which is expressed as
Sinθ = opposite side/hypotenuse
By substituting the given values,
Sin 42.5 = h/500
By crossmultiplying,
h = 500Sin 42.5
h = 337.795
Rounding to the nearest whole number,
height of Juanito's kite above the ground is 338 ft