There is a Small island in the middle of a 100 m wide river and a tall tree stands on the island. P and Q are the points directly opposite

Question

There is a Small island in the middle of a 100 m wide river and a tall tree stands on the island. P and Q are the points directly opposite to each other on the two banks, and in a line with the tree. If the angles of elevation of the top of tree from P and Q and 30° and 45° respectively, find the height of the tree. quickly answer plzzzz ​

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Autumn 2 weeks 2021-09-11T05:20:00+00:00 1 Answer 0 views 0

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    2021-09-11T05:21:35+00:00

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18:9+8+9*3-7:3-1*13 = ? ( )