Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » Math Topics » geometry.puzzles.independent

Topic: Finding angle in triangle
Replies: 2   Last Post: Sep 14, 2006 8:31 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Vijaya Prasad Nalluri

Posts: 8
From: India
Registered: 4/10/06
Re: Finding angle in triangle
Posted: Sep 13, 2006 5:40 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Apply Cosine Rule:
Cos A = (b^2 + c^2 - a^2) / 2bc

Chips wrote:
> I used to have this formula I think, but can't find it.
> If I know the lengths of the sides of a triangle (a, b, c) that does not
> necessarily have a right angle , is there a way to determine the angle A?
> Thanks,
> GC

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum 1994-2015. All Rights Reserved.