Area of a SectorWe can work out the Area of a Sector by comparing its angle to the angle of a full circle.Note: we are using radians for the angles.This is the reasoning:A circle has an angle of 2π and an Area of:πr2 A Sector has an angle of θ instead of 2π so its ...
There are two main "slices" of a circle. The "pizza" slice is called aSector. And the slice made by a chord is called aSegment. Quadrant The Quadrant is a special sector with a right angle. It has a quarter of the circle's area. Semicircle Half a circle is called aSemicircle. Ins...
circle sector area calculator - step by step calculation, formulas & solved example problem to find the area of circle sector given input values of corcle radius & the sector angle in degrees in inches (in), feet (ft), meters (m), centimeters (cm) & mill
A sector is a pie-slice portion of a circle bounded by two radii and an arc of the circle’s edge connecting the two radii. You can find thearea of a sectorusing the formula: A =r² ×θ/2 The areaAis equal to the radiusrsquared times the central angleθin radians, divided by...
顶点在圆心上的角叫做圆心角（central angle）。顶点在圆周上，且它的两边分别与圆有另一个交点的角叫做圆周角。圆周角等于相同弧所对的圆心角的一半。由圆心角的两条半径和圆心角所对应的一段弧围成的图形叫做扇形（sector）。扇形是其所在圆面的一部分。弦和它所对的一段弧围成的图形叫做弓形。圆...
Sector:A region bounded by two radii and an arc of the circle. Segment:A region bounded by a chord and an arc of the circle Basic Properties Symmetry:A circle is highly symmetrical. It has rotational symmetry about its center and reflection symmetry across any diameter....
A tangent to a circle forms a right angle with the circle's radius, at the point of contact of the tangent. Image Also, if two tangents are drawn on a circle and they cross, the lengths of the two tangents (from the point where they touch the circle to the point where they cross...
The quadrant must be a sector of 90 degrees. The radii that form the quadrant must be at the right angle to each other. The area of one quadrant must not overlap with any of the other three quadrants to maintain the 4 equal quadrants (the circle has four quadrants). Steps to Make a...
where α is a central angle, taken in the positive sense, and must lie in the interval 0 < α≤π. We can also take the chord length of any size of the circle by multiplying the unit circle chord by the circle's radius, r, as shown in this equation below: chord(α) = r × ...
The Circle Section function creates a section of a circle, which could be used to represent a light sector or other polygon features. There is only one coordinate that needs to be defined for this geometry, and it represents the start point on which the geodesic arc is based. It is from...