Saturday

January 31, 2015

January 31, 2015

Posted by **Winsel** on Saturday, August 14, 2010 at 1:30am.

- trigonometry -
**Reiny**, Saturday, August 14, 2010 at 9:09amI will help you with the diagram, after that it is easy.

Draw a vertical line AB, the tower, where A is the position of the man and B is the base of the tower.

AB = 73.5

Draw another vertical line CD, for the tree, C as the top and D as the bottom

Mark E on CD as the same height as AB

clearly AE = BD

and ED = AB , all we need is CE

angle (CAE) = 12.66667°

angle(EAD) = 70.3333° making angle (BAD) = 19.66667°

You now have 2 nice right-angled triangles, where you can find BD, and its an easy ride after that

**Answer this Question**

**Related Questions**

Trigonometry - frrom outlook tower 80ft. high, a man observes from a position 6....

math - From a lookout tower 80 ft. high, a man observes from a position 6.5 ft. ...

Math - from a lockout tower 25 meters high, a man observes from a position 1.70 ...

Math - 1. A rangers tower is located 44m from a tall tree. From the top of the ...

math trigonometry - two office towers are 31 m apart. From the top of the ...

Calculus - The CN Tower is 553 m tall. A person is south of the tower, in a ...

trigonometry - a man measured the angle of elevation of the top of a tower to be...

math - A radio tower stands on the top of a hill that is 85 feet high. From the ...

help - The CN Tower is 553m high. A person in a boat on Lake Ontario, at a point...

Trig - From a point P on level ground, the angle of elevation of the top of a ...