Question Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results. B = 30°, b = 14.5, a = 12.3
This will provide an ambiguous case of triangles. Possible 2 solutions. This is an (SSA) triangle.
Okay, I've just solve it, there is only 1 solution. Do you know how to solve it?
*solved
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To solve for any give side or angle, use the law of sines in this case.
You still there?
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12.3sin(30)/14.3 = 24.64
That is really, really close. Its off by like 1 degree.
my ti give me in decimal .4301 and in degree 24.64
It would be 25.472 degrees.
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Now, since you know two angles, you can find the 3rd by their sum up to 180 degrees.
Can you figure out angle C?
25.472+30=x 180-x= Angle C
124.5
Yep
this are the possible answers no triangle two triangles A1 = 36.12o, B1 = 113.88o, b1= 22.49 A2 = 143.88o, B2 = 6.12o, b2 = 2.62 one triangle A = 36.12o, B= 113.88o, b= 22.49 one triangle A= 143.88o, B= 6.12o, b= 2.62
and any of the answers we solve is there
is not there
Ok, so Angle B is given in the question as 30 degrees. It doesn't match any of the solutions.
I know!
Is there a mix-up in the choices?
nope
Here is what I got when I solved it: sides: a=12.3 b=14.5 c=23.783 Angles: A=25.096 B=30 C=124.903
Sorry, but there is a mix-up in the answer choices.
so what i do :(
Are these computer choices, or paper choices?
computer is an online assigment
The fact that it's not an ambiguous triangle is weird. (SSA). There are normally 2 solutions, but this one only produced 1. Its also none of the provided choices. There must be a mistake somewhere.
Actually hold on on sec.
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