- #1
mewmew
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Ok, What do you do when two equations that should yield the same answer dont? For example when finding the area of a SSA triangle:
A= 25 degrees
side a = 100
side b = 200
Now, I know this triangle gives two possible answers but I am just concentrating on answer 1, when using the law of sines you get
B= 57.6973 degrees
which leaves C= 97.3027 degrees
Now, if you use the equation:
(a^2*sinB*sinC) / (2sinA) You get 9,958.48 inches^2
But, if you use .5(a)(b*sinC) which should work also, you get 9,925.88 inches^2
If these equations are equivalent then why do they give different answers? Is it just calculator rounding?
A= 25 degrees
side a = 100
side b = 200
Now, I know this triangle gives two possible answers but I am just concentrating on answer 1, when using the law of sines you get
B= 57.6973 degrees
which leaves C= 97.3027 degrees
Now, if you use the equation:
(a^2*sinB*sinC) / (2sinA) You get 9,958.48 inches^2
But, if you use .5(a)(b*sinC) which should work also, you get 9,925.88 inches^2
If these equations are equivalent then why do they give different answers? Is it just calculator rounding?
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