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Cannotfind7

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  1. Ok so to start out, I was given a puzzle to solve under the conditions that i could not solve it by using a scientific calculator. So hitting Sin(x) is not an option. I was started out with a circle as a base. The circle has a Diameter of 6.5 meters and an idea of putting 80 points along the edge of the circle with the same distance between each of them. I need to find the distance that is between these points, Not the arch curve but the straight line between them. best way i thought of how to do that was to make a triangle, using the radius for 2 of the sides and finding the link the third and final side through law of sines and law of cosines. Side a=3.25 Side b=3.25 Side c= X Angle A= 87.75 Angle B= 87.75 Angle C= 4.5 Sin(a)/A = Sin©/C Sin©= (C * Sin(a))/A Sin(x)= (4.5 * Sin(3.25)) /87.75 Now that i have so far, I could solve it if I knew how to solve " Sin(3.25) " by hand I would be set. But I was only taught on how to plug it in to the calculator. How do you guys solve For Sin(3.25) by hand. Diagrams or links would be helpful so I can better understand how to solve for sin by hand.
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