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UME Chiemelie Sylvester
Answers (1)
R^2= a^2+c^2-2ac cos(180 - THETA) Theta in this case is 60, 180-60=120 R^2 = 10^2 + 20^2 – (2 x 10 x 20 cos 120) R^2 = 700N R=√700N R= √100 * √7 N R= 10*√7 N or 10√7N
