My Math Forum Calculate side from angles and some other sides in triangle

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January 12th, 2010, 12:45 AM   #1
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Calculate side from angles and some other sides in triangle

Hello,

I would like the forumla for calculating the length of B.

What is known is the length of A (the entire length of that side), A2, D, D2 the angle of r and r2 (90 degrees).

What is the formula for calculating the length of B?

Regards,
Niklas
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 January 13th, 2010, 11:41 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,636 Thanks: 2080 B = AD/A2 (since B/A = D/A2).
 January 13th, 2010, 12:35 PM #3 Newbie   Joined: Jan 2010 Posts: 2 Thanks: 0 Re: Calculate side from angles and some other sides in triangle Hmm, a bit too easy... Thanks a lot!

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