The answer does not match. It is called a Radianthat is used in Trigonometry, a special branch of mathematics which deals with study of triangles. "Tri" means three and "gono" means angle and "metry" means measure) . If there is an angle at the center of circle subtended by the arc whose length is equal to the radius, then the angle at the center is called 1 Radian.
Extending the math out in order to determine the number of degrees in one radian, this is what we have. C = 2(pi)r; the length of the circumference is 2(pi) times the radius. This means that the number of radii in the circumference is 2(pi); there are 2(pi) radii in the circumference. There are 360 degrees in a circle, so the number of degrees in an angle subtended by an arc one radius long would be 360/2(pi), or about 57.3 degrees.
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it is arc angle
IUG_DimensionConstraintGstarCAD provides you eight Dimensional Constraint types:LinearConstrains the horizontal or vertical distance between points.Linear(Horizontal)Constrains the X distance between points on an object, or between two points on different objects.Linear(Vertical)Constrains the Y distance between points on an object, or between two points on different objects.AlignedConstrains the distance between points on an object or between two points on different objects.AngularConstrains the angle between line or polyline segments, the angle swept out by an arc or a polyline arc segment, or the angle between three points on objects.RadiusConstrains the radius of a circle or arc.DiameterConstrains the diameter of a circle or arc.ConvertConvert associative dimensions to dimensional constraints.
An isometric view necessarily should have two side views and either top or bottom view incorporated to be drawn in a single drawing. In order to represent top 0r bottom view a 30 degree angle from horizontal will be established as an inclined plane. Hence where the circle has to appear is important. Any how in order to get a circle in an isometric view an oval or elliptical form should be present in any one of the first angle or third angle views.
MA of inclined plane:Distance moved parallel to slope / vertical distance moved:Reciprocal of sin of incline angle (from horizontal):1 / ( sin ( incline angle ) )
you will need to know the angle subtended by the arc; arc length = radius x angle in radians
Full circumference of the circle = (2 pi) times (radius)Arc is a fraction of the full circumference.The fraction is (angle subtended at the center) divided by (360 degrees).If you have the radius 'R' and the angle 'A', the length of the arc is(pi) (R) (A) / 180
5.23
The relationship between the chord and the radius of the circle is Length of the chord = 2r sin(c/2) where r = radius of the circle and c = angle subtended at the center by the chord
Radius: A line from the center of a circle to a point on the circle. Central Angle: The angle subtended at the center of a circle by two given points on the circle.
Let us recall the formula for the circumference of a circle. That one is 2pi r. r is the radius of the circle and 2pi is the angle in radian measure subtended by the entire circle at the centre. If this is so, then any arc length 'l' will be equal to the product of the angle in radian measure subtended by the arc at the centre and the radius.So l = theta r. Say theta is the angle subtended by the arc at the centre.Therefrom, r = l / Theta.
There is not enough information to answer the question. You need the radius (or diameter) of the circle.
The length of the arc is r*theta where r is the radius and theta the angle subtended by the arc at the centre of the circle. If you do not know theta (or cannot derive it), you cannot find the length of the arc.
When the angle is measured in radians arc_length = angle x radius. So, 20cm = angle x 12cm => angle = 20cm / 12cm ~= 1.67 radians
An arc of length 6cm subtending an angle at the centre of 1.5c is equivalent to the whole circle of length 2πr subtending 2π radians. Therefore, 6/1.5 = 2πr/2π = r : Then r = 4 cm. NOTE : A radian can be defined as the angle at the centre of a circle subtended by an arc equal in length to the radius. So an arc subtending an angle of 2 radians is twice the length of the radius. An arc subtending an angle of 1.5 radians is thus 11/2 times as long as the radius.
The length of a chord = pi*r*x/180 where x is the angle subtended. = pi*5*80/180 = 6.98 cm
Pie/2=22/7/2Angle in radians =Total length of the arc/radius of the circle