sparky1234
21.07.2019 •
Mathematics
For triangle cab find the length of a side a
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Ответ:
the law of cosines establishes that
a²=c²+b²-2*c*b*cos A
in this problem
a=?
b=21
c=32
A=40°
a²=32²+21²-2*32*21*cos 40> a²=435.44> a=20.87 units
Ответ:
is that true? bc ill totally join >_< .