1.

A and B are standing on ground 50 meters apart. The angles of elevation for these two to the top of a tree are 60° and 30°. What is height of the tree?

A. $50\sqrt 3 \,{\text{m}}$$
B. $\frac{{25}}{{\sqrt 3 }}\,{\text{m}}$$
C. $25\sqrt 3 \,{\text{m}}$$
D. $\frac{{25}}{{\sqrt 3- 1}}\,{\text{m}}$$
Answer» D. $\frac{{25}}{{\sqrt 3- 1}}\,{\text{m}}$$


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