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7. Andrew measured the angle of elevation of the top of a lamp post to be 60°.When he walked 20 m further, the angle of elevation of the top of the lamp post is 30°. What is the distance from the top of the post to the second observation point? Express your answer to the nearest whole number. A. 20 m B. 25 m C. 30 m D. 35 m​

Sagot :

C IS THE ANSWER

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