whay circle is 360 degree?
83174
There's no particular reason to say that a circle has 360 degrees. It can also be said that a circle has 6400 mils, 8 octants. The important thing is to ensure that whatever names and/or values  you assign to a circle, it's consistent with other related measurements, like pi.
205070
360 degrees = 2 pi radians\nimplies \n180 degrees = pi radians\n180 degrees/pi radians = 1 (Or) pi radians/180 degrees = 1\n\nTo convert radians to degrees multiply the given data in radians with 1 which will not alter its value.\nNext replace 1 with the expression having radians in the denominator and simplify the expression.  \n\n4 radians \n = 4pi radians x 1\n = 4pi radians x (180 degrees/pi radians)\n = 4 x 180 degrees\n = 720 degrees\n\n\nhttp://www.schoolingkids.com/\nhttp://www.futureaccountant.com/
1043194
Angles are formed by two rays that begin at the same point or the union of two rays with a common endpoint, called the vertex\n\nThey are measured in \ndegrees (360 = complete circle), \nminutes ' (60 minutes in one degree) and \nseconds " (60 seconds in one minute)
1033875
What "ChinNa90" gave was a very general form of a conic section equation - it does not have to be only circle, but also a parobola or ellipse or hyperbola. \n\nThe standard and easily understandable form of a circle in 2D Cartesian (x and y) coordinates is given by:\n\n(x - a)^2 + (y - b)^2 = r^2\n\nwhere:\nPoint (a,b) is the Centre of the circle\nr is the Radius\n\nTherefore, if you wanted the equation of a circle whose centre is (3,4) and radius is 7 units, then it's equation would be:\n\n(x - 3)^2 + (y - 4)^2 = 7^2\n\nx^2 + y^2 - 6x - 8y + 25 = 49\n\nx^2 + y^2 - 6x - 8y - 24 = 0
74833
Skew angle is an angle >180 but < 360\nFor any angle there is a skew angle in reverse side.\nFor example in other side of 120 degree, there is a 240 degree skew angle.
893599
You may want to be more specific on this one... are you trying to find the largest possible area? You can inscribe lots of different trapezoids in a circle. \n\nAnd which theta are we talking about? The angle that the base makes with the circle?\n\nTry that one again,\n\nUMRmathmajor
103447
In R^2 = (x-a)^2 + (y-b)^2, (a,b) are the (x,y) coordinates of the center of the circle.  If you literally want to draw the circle, set the distance between the compass points to R, put the center point on (a,b) and draw.  If you want to program a computer to draw it, you create a loop where theta (the angle) goes from 0 to 2pi (one full circle) in small steps.  Then at each step, turn on the pixel nearest to (a + R*cos(theta), b + R*sin(Theta)).
768736
180°\n\nYesterday it was asked about a 5-pointed star.\n\nWell let us look at an n-pointed star\n\n1. Draw the circumscribing circle\n\n2. Join the vertices and create a regular n sides polygon inside the circumscribing circle\n\n3. Join each vertex to the centre\n\n4. Each point of the star is half the ange at the centree subtended on the same side.\n\n5. Each angle in the centre is equal as they are all subtended by equal chords as the sides of a regular polygon are equal.\n\n6. The sum of the angles at the centre of the circle = 360°\n\n7 So the sum of the angles at the circumference \n= sum of the angles of the star \n= ½ of 360°\n= 180°\n\nBONUS\n8 So each angle = 180°/n\n\nIf n = 5 each angle = 36°\nIf n = 7 each angle = (25 5/7)°
1055461
45/360....THATS THE RATIO CZ THE WOLE CIRCLE SUBYENDS A 360 ANGLE WHILE THE ARC SUBTENDS A 45 ANGLE SO THE RATIO OF THE ARC TO CIRCUMFERENCE IS 45/360
269071
Okay, what you want to do is find the circumference of the circle. That's 2(pi)r. That's 37.69911184... . Next find 32 as a decimal of this number - 32/(true cicumference). The fractional decimal is 0.8488263632... . Finally take this percentage and multiply it by 360 and you get 305.5774907... degrees or 305 degrees (accurate to 3 s.f.)
510334
x = a*sin(ang)\ny = b*cos(ang)\n\nang goes from 0 to 360 degress, a and b determine how oval it is (if a=b it is a circle)
1133705
If you are given the arc length of s,\n\nThe angle may be found by\n\ns/(2*PI*r) * 360 degrees.
275762
cos(315)degrees=cos(360-45degrees)\n               =cos 45degrees\n               =1/root2
610173
Radians are based on pi.  A radian is equivalent to 1/(2pi).  Because it is just a ratio of another constant, it isn't based on a physical standard unlike feet, meters, etc.\n\nIt's just like degrees.  A degree is 1/360th of a complete circle, but nobody needs to define 360 with a physical object.  We all know what 360 is.  Similarly we know what 2pi is (it's the circumference of a unit circle).
701201
Since there are four quadrant that make up the 360degrees. Draw the two axis x and y. Assume the top right part as quadrant 1, top left part as quadrant 2, bottom left as 3 and bottom right as 4. Now the calculation of angle starts from quadrant 1 in anticlockwise direction to make an angle of 360degrees. Now use "ASTC" rule i.e. assign 'A' to quadrant 1, 'S' to quadrant 2, 'T' to 3 and 'C to 4. \n\n'A' states that in this quadrant all i.e. sin, cos and tan have positive values.\n\n'S' states that in this quadrant sin have positive value and cos and tan have negative values.\n\n'T' states that in this quadrant tan have positive value and cos and sin have negative values.\n\n'C' states that in this quadrant cos have positive value and sin and tan have negative values.\n\nthat's it simple enough.
914474
well from my understanding there is 360 degrees in the circumference of a circle so divide that by 12 and you get 30 so every 30 degrees mark it.\nI hope i am not to wrong here!\n\nUnless its bigger but you can draw it down to fit that scale, that's not hard.
524608
Imagine the square of string:\n\nWhat will you do to make it a circle? You would have to bend the sides to form an arc like the way you would bend an archer's bow. For it to become a circle, you have to bend the four sides equally so that the corners will no longer be present.\n\nSo your new circle now will have an area bigger than the square. If you overlap the 2 figures together, you would have a big circle and inside it is a square whose 4 corners touch 4 equidistant points on the circle.\n\nArea of the circle: 64/pi OR 20.3718