Mathematics

A boy 1.2m tall, stands 6m away from the foot of a vertical lamp pole 4.2m long. If the lamp is at the tip of the pole, calculate (i) the length of the shadow of the body cast by the lamp
(ii) calculate the angle of elevation of the lamp from the boy, correct to the nearest degree

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  1. (i) x/1.2 = 6/(4.2-1.2)
    (ii) tanθ = (4.2-1.2)/6

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    oobleck

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