Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2010-10-16 00:02:08

beluga
Member
Registered: 2010-06-26
Posts: 8

Finding the angle of a non-right angled triangle using the sine rule

Hello

How do you find the angle for this triangle using the sine rule.

Thank you smile

Offline

#2 2010-10-16 00:03:31

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Finding the angle of a non-right angled triangle using the sine rule

Hi;

What triangle?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3 2010-10-16 00:04:42

beluga
Member
Registered: 2010-06-26
Posts: 8

Re: Finding the angle of a non-right angled triangle using the sine rule

hopefully this post will show the attachment

Offline

#4 2010-10-16 00:05:19

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Finding the angle of a non-right angled triangle using the sine rule

Not yet!


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#5 2010-10-16 00:09:43

beluga
Member
Registered: 2010-06-26
Posts: 8

Re: Finding the angle of a non-right angled triangle using the sine rule

third time lucky

Offline

#6 2010-10-16 00:19:18

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Finding the angle of a non-right angled triangle using the sine rule

I am using this:

formula-picture-law-of-sines.gif

a is the left bottom angle in your drawing (67°) . b is the top angle in your drawing.
c  is angle x in your drawing. A = 12.3, B = 10.6

b = 52.49°

Now you should be able to get angle x.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

Board footer

Powered by FluxBB