law of sines:
from a window,the gurl sees 2 objects an automobile and a narra tree. the angle of depression of the car is 50 degree while that of the foot of the tree is 30 degree if the distance between the car and the trees is 100m,find the distance from the gurl to the tree @Physics

Question

law of sines:
from a window,the gurl sees 2 objects an automobile and a narra tree. the angle of depression of the car is 50 degree while that of the foot of the tree is 30 degree if the distance between the car and the trees is 100m,find the distance from the gurl to the tree   @Physics

anonymous · Answer

thats the drawing in my xerox but my drawing is not good =)

phi · Answer

Step 1, find a triangle where you know a side and the angle opposite that side.

phi · Answer

You know a side with length 100 m, so you should try to find the number  of degrees in its opposite angle.

phi · Answer

step 2, find a different triangle with the unknown distance you are looking for, and the number of degrees in the opposite angle.
These 2 triangles will share a common side.
step 3.  use the law of sines to find the common side.
step 4.  use the result from step 3, and the law of sines to find the unknown

anonymous · Answer

give me a solution where u get 193.96m

anonymous · Answer

the 3rd angle is 100(180-50-30) and this where the girl is. 
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