Simple online calculator to calculate the length of the sides, areas of circle and a regular polygon. The outer circle surrounding it is called a circumscribed circle (or circumcircle) and the inner circle which is surrounded by the octagon is called the inscribed circle (or incircle). It is simple when the edges don't intersect, so if the polygon isn't crossed.Here the edge lengths as well as the perimeter and area of the polygon can be … With this centroid calculator, we're giving you a hand at finding the centroid of many 2D shapes, as well as of a set of points. Regular Polygons. An exterior angle is the angle between a side of a geometrical figure and an adjacent side that is extended outwards. The figure below shows a regular octagon. A polygon can be classified as regular polygons and irregular polygons. Radius of circle given area. The regular polygons have equal sides and angle measurement, whereas the irregular polygon has different side and angle values. Our user asked us to create calculator which should determine "side length of the regular polygon (pentagon, hexagon) by diameter or radius of circumscribed circle". This calculator works only for regular polygons - those polygons which have ALL sides equal & ALL interior angles equal. Circle Radius Bounding Circle Circumference Bounding Circle Area Single Circle Slice Area Centers Around Circumference : Sides Radius. A polygon consists of straight edges and at least three vertices. Area of a parallelogram given sides and angle. Side of polygon given area. Multi Sided Polygon Geometry Calculator See also: Full Scale Printable Polygon Templates. Actually, this is quite simple. Side of a regular polygon when area is given calculator uses Side=sqrt(4*Area of regular polygon*tan(180/Number of sides))/sqrt(Number of sides) to calculate the Side, Side of a regular polygon when area is given can be defined as the line segment that makes up the polygon provided the value of the area of a regular polygon for calculation. Area of an arch given height and radius. Area of an arch given angle. Calculations at a simple polygon. Area of a cyclic quadrilateral. The calculator computes the total area and also outputs all triangles it is used for calculation. Area of a regular polygon. Code to add this calci to your website Just copy and paste the below code to your webpage where you want to display this calculator. Just calculate: perimeter = 6 * side, where side refers to the length of any one side. Advanced Polygon Calculator An interior angle is the angle between the two adjacent sides of a geometrical shape. Area of a circular sector. Perimeter = n*s. Area of a circle. The polygon with the least number of sides is a triangle and the polygon with “n” number of sides is called n-gon. To calculate the polygon area, you measure side lengths, put them into the table below, then split the polygon into non-overlapping triangles, measure needed diagonals, put them into the table, and you're done. The algorithm behind this regular polygon calculator requires the side length and the number of sides to be given, while it is based on the formulas provided below: r = (s/2)*cotangent(180°/n) R = (s/2)*cosecant(180°/n) Area = (Perimeter*r)/2. Feet Inches: Octagon Sides Side Lengths Single Triangle Section Area Total Area Bounding Rect . This means that, for a regular hexagon, calculating the perimeter is so easy that you don't even need to use the perimeter of a polygon calculator if you know a bit of maths. Polygon Calculator. For the sides, any value is accepted as long as they are all the same. 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