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From the top a cliff 20m …

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From the top a cliff 20m high the angle of eleavtion of the top of a tower is found to be equal to the angle of depression of the foot of the tower find the height of the tower

    • Posted by Anuj Gaur 7 years, 4 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    G K 7 years, 4 months ago

    Let angle of elevation and depression is theta..... and distance b/w them..y... and height of tower be 20+x....then.... tan(theta)=20/y=x/y....hence x=20m....therefore height of tower is 20+x=20+20=40m.....

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