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OpenStudy (anonymous):
Suppose a triangle has two sides of length 3 and 4 and that the angle between these two sides is 60°. What is the length of the third side of the triangle? A. square root of 13 B. square root of 3 C. 4 square root of 3 D. 3
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OpenStudy (anonymous):
Will Medal! :) Need AS SOON AS POSSIBLE PLEASEEEEE
OpenStudy (mackenzie2013):
use the cosine rule c^2 = a^2 + b^2 - 2ab cos C
OpenStudy (anonymous):
Thanks, the answer is A :D
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