- #1
thomas49th
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Homework Statement
A = (7,6,8)
B = (2,3,-1)
C = (2, -7, 9)
Find the area of the triangle these 3 points make
I'm getting slightly different results for different combinations I use
if I take
CA = a - c = (5 , 13 , -1)
CB = b - c = (0, 10, -10)
Taking another combination
AB = b - a = (-5, -3, -9)
AC = c - a = (-5, -13, 1)
Taking the modulus of the cross product and halving yields similar, but different answers. I've check and redone my work
Why?
Thanks
Thomas
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