# Frequent question: How do you calculate the area of a polygon in Java?

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## What is area formula?

The most basic area formula is the formula for the area of a rectangle. Given a rectangle with length l and width w, the formula for the area is: A = lw (rectangle). … As a special case, as l = w in the case of a square, the area of a square with side length s is given by the formula: A = s2 (square).

## What is triangulation method?

Triangulation refers to the use of multiple methods or data sources in qualitative research to develop a comprehensive understanding of phenomena (Patton, 1999). Triangulation also has been viewed as a qualitative research strategy to test validity through the convergence of information from different sources.

## How do you triangulate a shape?

1) For each vertex in the polygon, compute the angle between the two linked edges. 2) Sort vertices by decreasing angle relative to the interior of the polygon. 3) If there is less than 3 vertices in the set, we’re done. 4) Take the last vertex in the set and output the triangle formed by it and its two neighbours.

## Why do we need to triangulate a polygon?

Because of this, it’s often the case that complex shapes are made up of simpler shapes, such as triangles, circles, and rectangles, for which it’s easy to determine whether a point lies in the complex shape or to determine that shape’s bounding box.

## What is the area of a polygon with 5 sides?

The basic formula that is used to find the area of a pentagon is, Area = 5/2 × s × a; where ‘s’ is the length of the side of the pentagon and ‘a’ is the apothem of a pentagon.

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