3D trig (1 Viewer)

[richman92]

From A to B, two railway stations, the line runs south west. Two spires, 3km a part are both N-W of A. From B, the bearings of the spires are N 7.5degree E and N 37.5 E. Shows that AB = 6 sin52.5 cos7.5. Find AB

I could not draw the diagram

 

[SeCKSiiMiNh]

i think i got it

b is south west of a, you got that?

now... from A, draw a line north west of a. lying on that line are the two spires (towers) which are 3kms apart.

i uploaded a pic of the BASE of the triangle, since i cant draw 3d pics in paint.

edit: a;lright, uploaded a new one. i think its right.

 

[ohexploitable]

 

[SeCKSiiMiNh]

a to b is south west!

 

[ohexploitable]

Added moar angles, me thinks you're meant to use the ones in red.

 

[ohexploitable]

Fuck! I mixed up east and west!

 

[ohexploitable]

lol I hope you can read backwards...

 

[SeCKSiiMiNh]

Fuck! I mixed up east and west!

 

[ohexploitable]

Disregard everything I've said, it's wrong

 

[SeCKSiiMiNh]

im sure mine's right! though the pic is small