the length of the string between a kite and a point on the ground is 90m . the string makes an angle of 60 degrees with the level ground . assuming that their is no slack in the string find the height of the kite

let the length of the string be AC=90 m. let the kite be at the point A.

let the height of the kite be AB= h m.

since string makes an angle of 60 deg with the ground level.

∠ACB= 60 deg

now in the right angled triangle ABC

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 let h be the height of the kite and l be the string

sin(60) = h/l 

h = l * sin(60) = 90 * root(3)/2 = 45 * root(3) metres

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