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6 December, 18:53

With the sun at an angle of 30 degrees to the ground, a tree casts an 80 ft shadow. how tall is the tree?

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  1. 6 December, 19:11
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    Let tree's height = h

    h/80 = tan 30

    ⇒ h = 80 tan 30

    ⇒ h = 80 * 1/√3

    ⇒ h = 46.19 ft
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