Posted by **Anonymous** on Sunday, May 27, 2007 at 4:46pm.

In any angle ABC prove tht the perimeter = a/Sin A(Sin A + Sin B + Sin C)

Start with perimeter = a+b+c

but b= aSinB/sinA and

c= aSinC/SinA

and if you dont remember, a=a=a*SinA/

SinA

## Answer this Question

## Related Questions

- math - find all solutions in the interval [0,2 pi) sin(x+(3.14/3) + sin(x- 3.14/...
- Trig - Please help with this one. I've worked it out in so many ways and can't ...
- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- Trig - I don't know the physics behind Snell's Law, but I can do the math Snell'...
- trig - How to do this one? (sina/1-cosa) + (1-cosa/sina) = Also, wanted to ask ...
- Pre-Calculus - How can the following two identities be verified? 1. (cos^2y)/(1-...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...
- Math - If A and B are acute angle such that SinA=8/17 and CosB=3/5.Find 1, Cos(A...
- Math - If A and B are acute angle such that SinA=8/17 and CosB=3/5.Find 1, Cos(A...
- math (trig) - i have some problems doing trig the first one is: Show that cos(x/...

More Related Questions