Asked by Tommy
If I am give the the sides of a triangle, where
Side RA=4
Side AB=4.8
Side RB=7.1
How do I find Angle RAB?
Thanks!
Side RA=4
Side AB=4.8
Side RB=7.1
How do I find Angle RAB?
Thanks!
Answers
Answered by
bobpursley
Law of Cosines
C^2=a^2+b^2-2abCosC
so label your sides a, b, c
you want angle c to equal RAB
so RB=C
RA=a
AB=b
C^2=a^2+b^2-2abCosC
so label your sides a, b, c
you want angle c to equal RAB
so RB=C
RA=a
AB=b
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