Posted by **josh** on Sunday, December 6, 2009 at 10:58pm.

if im standing 28 meters from a tree....the tree is leaning 7 degrees vertically away from u...the degree of elevation is 26 degrees from feet to tree...whats the height of the tree?

- physics -
**MathMate**, Monday, December 7, 2009 at 7:49am
Draw a diagram. For example:

http://img33.imageshack.us/img33/5981/1260158305.png

You have a triangle in which all three angles are known, together with one of the sides.

Use the sine rule to solve for the height of the tree. First solve for L, the side of the triangle opposite the 26° angle using

L/sin(26°) = 28/sin(57°)

The height, H of the tree is

H = L*cos(7°).

I get less than 15m for H.

## Answer This Question

## Related Questions

- trig - Because of prevailing winds, a tree grew so that it was leaning 4 degrees...
- trigonometric oblique triangle - you are standing 40m from the base of a tree ...
- geometry - a tree grew at a 3 degree slant from the vertical. at a point 60 feet...
- trigonometry - A man 1.8 metre tall observes the angle of elevation of a tree to...
- CST GEOMETRY - a tree is situated on level ground from a point 135 feet from the...
- geometry - At a point on the ground 50 feet from the front of a tree, the angle...
- mathhhhhhhhhhhh - Because of the prevailing winds, a tree grew so that it was ...
- geometry - can someone please show me the answer for this problem ? a tree is ...
- geometry - Suppose the angle of elevation to the top of a tree is 47 degrees. If...
- geometrY - See the last picture at the bottom of this web page (for a pic of ...

More Related Questions