> 10400 (10414)
>
> s = (a+b+c)/2
>
> K = (s*(s-a)*(s-b)*(s-c))^(1/2)
Hmmm - my answer doesn't seem to jibe here...
I'll work it a different way then :)
Dang - I found the problem. My algebra is a little rusty...
-8425 = -(10625 * CosC) (do some algebra)
8425 = 10625 * CosC (some more algebra)
should be
-8425 = -(10625 * CosC) (do some algebra)
8425 = 10625 * -CosC (some more algebra)
-CosC = 8425/10625
CosC = -8425/10625
C = 142.461 degrees
K = 1/2 abSinC
K = .5 * 125 * 170 * Sin(142.461)
K = 6473.793 square units (same answer...)
Funny thing about complementary angles, they have the same sine...
Ken
'01 PT Cruiser Limited
HS101 in OKC (Soon to be STS101)
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