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A ladder 8m long reaches from the top of a vertical flagstaff. at the foot of the ladder the elevatiob of the top of tge flagstaff is 60° find the height

of the flagstaff


As the ladder length is 8m and angle of elevation is 60 the ladder and the flagstaff forms a triangle. ladder is the hypotenuse so
take sin60 
√3÷2 = flagstaff height÷8
8√3/2=flagstaff height
4√3=flagstaff height
therefore height of flag staff is 4√3
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