A flagstaff is fixed at one corner of a squarefield of side 20 m.the angle of elevation to the top of flagstaff from the opposite corner of the field is found to be 30°.find the height of flagstaff

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  1. the field's diagonal has length 20√2
    So, if the staff has height h, then
    h/(20√2) = tan30°
    Now just solve for h.

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  2. Plz upload figure

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