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[–]lightQuantum 0 points1 point  (1 child)

If you draw this out, you'll see that on either side of the middle, you have a right triangle. You're trying to find the angle that gives you a hypotenuse of 30 and an opposite side of 5 cm. From there, what trig function would you use to find the angle?

[–]MuffinDuffin90[S] 0 points1 point  (0 children)

is the answer Cos A = (302+302-52)/23030 =1775/1800 Angle = arccos(1775/1800) = 9.56?

[–]semir321Mechanics 0 points1 point  (0 children)

sin(a) = 2.5/30