Biology, 12.11.2019 02:31 emmahuber980
John (whos line of sight is 6 ft above horizontal is trying to estimate the height of a tall oak tree. he first measures the angle of elevation from where he is standing as 35 degree > he walks 30 feets closer to the tree and find s that the angle of elevation has increased by 12 degree .estimate the height of the tree.
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