Law of Cosines:
a2 = b2 + c2 - 2bc*cos(A)
a2 = (10.25)2 + (5.5)2 - 2(10.25)(5.5)cos(15.6o) = _______
Use you calculator to compute the value of a2. Once you have a2, take the square root to get a.
Blio B.
asked • 05/26/16Help trig!!!
A=15.6° b=10.25 c=5.5 a=?
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