The shadow of a tower standing on the level ground is found to be 40 m

longer when the sun’s altitude is 30 than when it is 60 Find the height

of the tower.

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

let BC and BD be the length of the shadow. such that CD = 40 m

in the triangle ABC,

in the triangle ABD,

since BD= BC+CD

thus the height of the tower is

hope this helps you.

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