TRIG//I NEED HELP

Question

A kite needs to be flown at a height  feet in the air. The kite's string will be attached to a pole, at a point  feet above the ground. The angle of elevation from the point where the string is attached to the kite is . 

What is the length of the rope that will hold the kite at the correct height?  

Answer 1

let h= height required for the kite

let p = pole height

let A = the angle formed by a horizontal line from the top of the pole to a point directly below the point where the kite is flying

construct a right triangle with base = b, and height = h-p

hypotenuse = sqr(b^2 + (h-p)^2) feet = length of the rope or string used to fly the kite-

base = square root of (hypotenuse squared minus (h-p)^2)

A = cos^-1((h-p)/sqrr(b^2+(h-p)^2)