Finding the correct angle?

Rep to whoever can solve this and help me out. Edit: I've got the answer now but I guess I'll leave it unsolved for now to see if anyone can solve it here.

Point A 1802 Feet
Point B 2170 Feet

Distance 5.21 Miles

I need to aim my antenna from point A at the top of point B at 2170 Feet. What specific angle would this be? The antenna is currently pointed horizontal with the ground.

Assuming the ground is 180 degrees I'm currently at 90 degrees what degree lines up with 2170 Feet?
 
I got bored, so tried. That's a hard one. You gotta know like trig or something to get it I think. I at least found you can find the right triangle and use the Pythagorean Theorem to find the hypotenuse (distance from point A to top of point B).

Distance in feet at 5.21 miles is 275808.8ft.

Distance from point A to top of point B is 27511.263567608ft

The other distance is 368ft, though it shouldn't be important.

Kinda hard to draw a triangle in text, so I hope you get it... From there you can find the angle somehow, I tried several different approaches and had no idea what I was doing...lol.
 
I got bored, so tried. That's a hard one. You gotta know like trig or something to get it I think. I at least found you can find the right triangle and use the Pythagorean Theorem to find the hypotenuse (distance from point A to top of point B).

Distance in feet at 5.21 miles is 275808.8ft.

Distance from point A to top of point B is 27511.263567608ft

The other distance is 368ft, though it shouldn't be important.

Kinda hard to draw a triangle in text, so I hope you get it... From there you can find the angle somehow, I tried several different approaches and had no idea what I was doing...lol.

I'll hit you up with some rep for trying :) I've got the answer now but I won't put it up just yet. I want to see if anyone can answer it.
 
I hope I'm on the right track with this!!

2170-1802 = 368

368/27511 (opp/adj) = 0.01........ etc
Inverse tan 0.01 = 0.5 degrees
 
Thanks and you were pretty close! Here is the full formula.

Imagine points A and B onto a graph, with the coordinates of A (x,y) be (0,1802). The x-coordinate for point B will be the 27508.8 we got, and the y will be 2170, so the coordinate will be (27508.8, 2170).

Now since I can make an imaginary right triangle, the angle x is just the inverse tangent of the y difference divided by the x difference.

x = atan (2170-1802)/(27508.8)

x = .766430713988... (degree)

which rounds to

x = .766 degree
 
Back
Top Bottom