The angle of elevation from a point on level ground to the top of a tower . The angle of
elevation of the top of the tower from a point 164 feet further back on the same horizontal line
is . Find the height of the tower.

Question

The angle of elevation from a point on level ground to the top of a tower .  The angle of 
      elevation of the top of the tower from a point 164 feet further back on the same horizontal line 
      is .  Find the height of the tower.

campbell_st · Answer

the only measurement you have is 164 ft... do you have any angle measurements?

anonymous · Answer

oh sorry 40 degree 20

anonymous · Answer

@campbell_st

campbell_st · Answer

ok... so that makes it easier... draw a diagram 

|dw:1426101835283:dw|

campbell_st · Answer

now you can use you knowledge of triangles 
|dw:1426102024644:dw|

so it didn't need any calculation to find the hypotenuse of the smaller 
right triangle |dw:1426102119279:dw|