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a boy standing at a distance of 48 m from a building observes the top of the building and makes an angle of elevation of 30°. Find the height of the building |
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Answer» distance between boy and building=x=48m height of building=ym angle of elevation=z=30 y/x=tan30=//3 to the power 1/2=y/48 48/3 to the power 1/2=y =48x3 to the power 1/2 DIVIDED by 3(RATIONALISING) =(24 MULTIPLIED with 3 to the power 1/2)m |
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