How can I find angle v in this figure?

Info:

AO=OB=OP=OC=6370 km

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- August 26th 2006, 08:24 AMNeffets...:PTricky triogonometri...
How can I find angle v in this figure?

Info:

AO=OB=OP=OC=6370 km - August 26th 2006, 08:25 AMGlaysher
Tricky with the figure missing?

- August 26th 2006, 08:26 AMNeffets...:Pcontinues....
PS=20240 km

CP = 2780 km

Thanks for all answers :D - August 26th 2006, 08:43 AMCaptainBlackQuote:

Originally Posted by**Neffets...:P**

The rest is just fiddly trig. - August 26th 2006, 08:54 AMNeffets...:Pthanks
thanks mate! I think i'll manage it all now...

:D :D :D :D

You guys are GREAT! - August 27th 2006, 12:48 AMNeffets...:Pneed more help...
:mad: i have tried a lot, but i have not been able to find the answer!

CP is a part of a circle...

the angle is on a tangent.

Can you guys show me how you find the answer?

I know I seem a bit stupid, but...

:D :D - August 27th 2006, 01:01 AMCaptainBlackQuote:

Originally Posted by**Neffets...:P**

Now look at you know , and , so you can find and using the and of and .

Now switch attention to . You know and , so you know . You already know , so Pythagoras's theorem will now finish the problem.

RonL - August 27th 2006, 05:22 AMCaptainBlackQuote:

Originally Posted by**CaptainBlack**

Extent the tangent at to meet at , then is similar to . This will allow you to find , and you already have enough information to fins which will allow you to find angle at

RonL - August 27th 2006, 08:55 AMCaptainBlack
The attached scan shows all the relevant dimensions and angles filled

in on the diagram.

RonL - August 28th 2006, 08:44 AMNeffets...:PThanks Captain!
This forum is great! Now I can finally get help when I'm in a tricky situation...

Thanks a lot Captain Black!!!! :-D :-D

I couldn't find the answer with your first explanation, so I'm glad you did remember the rest...

Neffets...:P