Areas of triangle and parallelogram. One can also calculate the area of any n-sided polygon using the formula: Area = n∗s∗a/2 Where n is the number of sides, s is the length of a side, and a is called apothem. The apothem is the length of a perpendicular line that connects...
How do you find the area of a 5-sided polygon? If the apothem isn't known, it should be solved first using the apothem formula. Then the regular polygon formula can be applied. Multiply the side length and the apothem. Then multiply this number by 5/2 - 5 for the number of sides...
You can find the area of an annulus by subtracting the area of the outer circle from the area of the inner circle. The formula is: A = πR2– πr2 R = larger radius r = smaller radius How to Find Area of a Pentagon A pentagon is a regular polygon with five sides that are the...
Rearranging the terms (and changing signs) we get the so-called "shoelace formula":−2×Area = x1y2 + x2y3 + x3y1 − x2y1 − x3y2 − x1y3In GeneralIn general (for an n-sided simple polygon), using absolute values || we have:...
*4.5(Geometry: area of a regular polygon) A regular polygon is an n-sided polygon in which all sides are of the same length and all angles have the same degree (i.e., the polygon is both equilateral and equiangular). The formula for computing the area of a regular polygon is ...
Consider an N -sided polygon P1 P2 ··· PN in the Euclidean plane. We denote by Pi the position vector of vertex Pi relative to some fixed origin. The (oriented) sides of the polygon are then described by the vectors si = Pi+1 Pi . Here and throughout this paper we extend the ...
In this heptagon area calculator, you will learn a lot of things like: How to find the area of a heptagon; How to derive the heptagon area formula; and How to use this heptagon area calculator. Heptagon (or septagon) is a seven-sided polygon, and despite being very rarely used in desi...
where n is n-sided polygon and s is the length of a side.Test Data: Input the number of sides on the polygon: 7 Input the length of one of the sides: 6Pictorial Presentation: Area of PolygonSample Solution:Java Code:import java.util.Scanner; public class Exercise35 { public static ...
A rectangle is simply any polygon that contains four right angles. In the plane, we can check that a polygon is a rectangle if it shares two sets of parallel sides. We can find the perimeter of a rectangle by summing the lengths of its sides, and we can find ...
A dodecagon is a regular polygon which means to find the area of a regular dodecagon, we can use the area formula of any regular polygon, as shown below: A=12×n×a×rA=21×n×a×r Where: AA is the area of a regular polygon; nn is the regular polygon's number of sides; aa is...