[填空题]
From a sailboat mooredk)j:)8rhvyd p at sea, the angle of elevation to the topay3 *dl5lnt aoao3 s)e f/4g) k9b.d8kdgz-ll of a 20 m high cliff is danoadsolf a. yl-)lkkezl4 dggt*3/5)b 839$22^{\circ}$. On the cliff top there is a coconut tree. The angle of elevation to the coconut tree is $29^{\circ}$.
1.Draw a diagram representing the situation.
2.Find the height of the coconut tree. m
