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Home Q & A Board Science-Related Homework Help Mathematics
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smag smag
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Posts: 39
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11 years ago
These are the sides of the triangle
AB=4.7
BC=5
CA=1.6
I found one angle by doing this
a² = b² + c² - 2(b)(c)cos(A)
25= 24.6 - 15cos(A)
25 - 24.6/15 = cos(A)
0.4/15 = cos(A)
0.02667 = cos(A)
A = 88.5
but I don't know how to find the next angle..
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Answer accepted by topic starter
_Mil96_Mil96
wrote...
#1
Posts: 64
Rep: 0 0
11 years ago
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