A flagpole stands on a top of a building. The angle of elevation of the foot of the pole 30 m from the foot the building is 60° and 80 m farther, the top of the pole has an elevation of 30°. How high is the pole? Give the answer in exact form.
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Correct answer were submitted by:
1. Melvin D. Alas-as Manuel S. Enverga Univ. Foundation Lucena City
2. Jeffry Robles. University of the Philippines – Diliman
3. Muthukrishnan .Kle College , Bengaluru
4. Jhay Dela Cruz. Polytechnic University of the Philippines – Taguig
5. Arsh Singh. works at yourmathguru.com
6. Ng Hong Jie.Jurong Junior College.Singapore
7. Kenny Wong, Jurong Junior College, Singapore