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- A concave polygon is defined as a polygon in which one or more interior angles is more than 180°. If any of the diagonals of a polygon are formed partly or fully outside the polygon, then it is called a concave polygon.
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Learn what a concave polygon is, how to identify it, and its properties and examples. A concave polygon has at least one reflex angle and some diagonals outside it.
A concave polygon is a polygon with at least one interior angle greater than 180 degrees. It has at least four sides and is usually irregular. Learn how to find the area and perimeter of a concave polygon, its exterior and interior angles, and its types such as regular and irregular. See examples and formulas for concave polygons.
- What is meant by a concave polygon?A concave polygon is a polygon that has at least one of its interior angles greater than 180 degrees.
- How many sides does a concave polygon have?A concave polygon has at least four sides.
- What is the difference between concave and convex polygon?A convex polygon has all its interior angles less than 180 degrees whereas a concave polygon has at least one interior angle more than 180 degrees.
- How to find the area of a concave polygon?Divide the concave polygon into separate triangles, by drawing diagonal lines from one vertex point to other vertices. Now find the area of all the...
- What are the other types of a polygon?The types of polygons are: Regular Polygons Irregular Polygons Concave Polygons Convex Polygons Trigons Quadrilateral Polygons Pentagon Poly...
- Is rhombus convex or concave?Rhombus is a type of parallelogram having all sides equal in length and opposite angles equal in measure. All the parallelograms are convex polygons.
- Is an arrow a polygon?An arrow is a two-dimensional shape that has a straight line with one end-point. Since it is not a closed shape thus it cannot be a polygon.
A concave polygon is a polygon in which at least one interior angle is a reflex angle (angle greater than 180° but less than 360°). A concave polygon has at least 4 sides. It means that a triangle is always a convex polygon.
- How can we find the perimeter of a concave polygon?The perimeter of a concave polygon is calculated in the same way as the perimeter of convex polygons. All the sides of the polygon are added to fin...
- How can we find the area of a concave polygon?Concave polygons are irregular in shape. A concave polygon can be divided into triangles or other smaller polygons. Then, the area of these shapes...
- Why is an arrow a concave polygon?An arrow is a concave polygon because it fulfills all the conditions of a concave polygon. It has interior angles that measure more than 180° and o...
- What is the difference between a regular polygon and a concave polygon?A regular polygon is a polygon that is equilateral and equiangular whereas a concave polygon is a polygon in which at least one angle is more than...
- Is a triangle a concave polygon?No, a triangle is not a concave polygon as there are no diagonals in a triangle. Also, the sum of angles of a triangle is 180°.
- Is a star a concave polygon?A star is a concave polygon.
A simple polygon that is not convex is called concave, [1] non-convex [2] or reentrant. [3] A concave polygon will always have at least one reflex interior angle —that is, an angle with a measure that is between 180 degrees and 360 degrees exclusive. [4]
- Area
- Interior Angles
- Exterior Angles
- GeneratedCaptionsTabForHeroSec
It is the total space enclosed within the polygon. The formula is given below: Area (A) = ½|(x1y2 – x2y1)+(x2y3– x3y2)+……..+(xny1– x1yn)|, here (x1, y1), (x2, y2), (x3, y3),…….., (xn, yn) are the vertices of the polygon on the coordinate plane
The interior angles of a polygon are the angles found inside the polygon. A polygon has the same number of interior angles as the number of sides. Sum of the Interior Angles It is the total measure of all the interior angles combined in the polygon. The formula to determine the sum of all angles in any convex regular polygon is given below: Sum of ...
The exterior angle of a polygon is the angle formed by one side and the extension of the adjacent side. The exterior angle sum theorem states that the sum of the exterior angles of any convex polygon is 360°. For regular convex polygons having n sides, each exterior angle is determined using the following formula: Exterior angle of a Convex Regular...
Learn the difference between convex and concave polygons, two groups of polygons based on their interior angles. Find out how to identify, calculate, and classify convex and concave polygons with examples, formulas, and solutions.
A concave polygon is a polygon with one or more interior angles greater than 180°. It has some vertices that are 'pushed in' towards the center of the polygon. Learn how to identify, adjust, and calculate the area and perimeter of a concave polygon with examples and interactive tools.
6 days ago · A concave polygon is a polygon that is not convex. A simple polygon is concave iff at least one of its internal angles is greater than 180 degrees. An example of a non-simple (self-intersecting) polygon is a star polygon. A concave polygon must have at least four sides.
